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Writing this expression in its more familiar coordinate form, we get @ OP ! @ 2 0 a 0 2 0 b 0 2 2 0 c 0 or @ OP ! @ V 0 a 0 2 0 b 0 2 2 0 c 0 . The use of the absolute value signs in the formula guarantees that the components are positive before they are squared. Because squaring components guarantees the result will be positive, it would have been just as easy to write the formula as @ OP ! @ Va 2 b 2 c 2 , which gives an identical result. R 3 Position Vectors and Magnitude in If A1x and are two points, then the vector @ AB ! 1 , y 1 , z 1 2 B1x 2 , y 2 , z 2 2 @ 1x 2 x 1 , y 2 y 1 , z 2 is equivalent to the related position vector, , and @ AB ! @ @ OP ! OP ! z 1 2 1a, b, c2 @ Va 2 b 2 c 2 V1x 2 x 1 2 2 1y 2 y 1 2 2 1z 2 z 1 2 2 . EXAMPLE 3 Connecting vectors in R 3 with their components If A17, 11, 132 and B14, 7, 252 are two points in R 3 , determine each of the following: a. 0 OA ! 0 b. 0 OB ! 0 c. AB ! d. 0 AB ! 0 Solution a. @ OA ! b. @ OB ! @ V7 2 1112 2 13 2 V339 18.41 c. AB ! @ V4 2 172 2 25 2 V690 26.27 d. @ AB ! 14 7, 7 1112, 25 132 13, 4, 122 @ V132 2 4 2 12 2 V169 13 In this section, we developed further properties of algebraic vectors. In the next section, we will demonstrate how these properties can be used to understand the geometry of R 3 . NEL CHAPTER 6 331
IN SUMMARY Key Ideas • In R 3 , i ! 11, 0, 02, j ! 10, 1, 02, k ! 10, 0, 12. All are unit vectors along the x-, y- and z-axes, respectively. • OP ! 1a, b, c2 ai ! bj ! ck ! , 0 OP ! 0 Va 2 b 2 c 2 • The vector between two points with its tail at A1x 1 , y 1 , z 1 2 and head at B1x 1 is determined as follows: AB ! , y 1 , z OB ! 1 2 OA ! • The vector AB ! 1x 2 , y 2 , z 2 2 1x 1 , y 1 , z 1 2 1x 2 is equivalent to the position vector OP ! x 1 , y 2 y 1, z 2 z 1 2 since their directions and magnitude are the same. 0AB ! 0 1x 2 x 1 2 2 1y 2 y 1 2 2 1z 2 z 1 2 2 Need to Know • If OA ! and then • mOP ! 1a, b, c2 OD ! 1d, e, f 2, OA ! OD ! 1a d, b e, c f 2. m1a, b, c2 1ma, mb, mc2, mR Exercises 6.7 PART A 1. a. Write the vector using the standard unit vectors. b. Determine @ OA ! OA ! 11, 2, 42 @ . 2. Write the vector OB ! 3i ! 4j ! 4k ! in component form and calculate its magnitude. 3. If a ! 11, 3, 32, b ! 13, 6, 122, and c ! 10, 8, 12, determine Pa ! 1 3 b! c ! P . 4. For the vectors OA ! 13, 4, 122 and OB ! 12, 2, 12, determine the following: a. the components of vector , where b. @ OA ! , , and c. AB ! @ @ OB ! @ and @ AB ! @ OP ! OP ! OP ! OA ! OB ! @ @ . What does AB ! represent? 332 6.7 OPERATIONS WITH VECTORS IN R 3 NEL
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Chapter 1 INTRODUCTION TO CALCULUS
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y x 3 1 , if 3 6 t 6 0 t 6. A func
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What Is Calculus? Two simple geomet
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If a and b were radicals, squaring
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Exercise 1.1 PART A 1. Write the co
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Consider a curve y f 1x2 and a poi
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EXAMPLE 2 Tech Support For help gra
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The slope of the tangent at 13, 42
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INVESTIGATION 4 Tech Support For he
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4. Simplify each of the following d
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18. Copy the following figures. Dra
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A. Determine the average velocity o
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Instantaneous Velocity The velocity
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Solution a. C11002 10V100 1000 1
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Exercise 1.3 C PART A 1. The veloci
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f 1x2 f 1a2 15. Use the alternate
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. Use your results for part a to ap
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The graph shown on your calculator
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limits because, in each case, only
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11. For each function, sketch the g
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EXAMPLE 2 EXAMPLE 3 EXAMPLE 4 Using
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INVESTIGATION Here is an alternate
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In this section, we learned the pro
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A 11. Jacques Charles (1746-1823) d
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A second condition for continuity a
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d. The function F is not continuous
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x 3, if x 3 12. g1x2 e 2 k, if
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Key Concepts Review We began our in
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c. What is the present rate of chan
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16. Evaluate the limit of each diff
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Chapter 2 DERIVATIVES Imagine a dri
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2 4 5. Expand, and collect like te
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Section 2.1—The Derivative Functi
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For the Parabola f1x2 x 2 The slop
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Note that f 1t2 Vt is defined for
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EXAMPLE 6 Reasoning about different
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Exercise 2.1 PART A 1. State the do
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T 15. Match each function in graphs
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EXAMPLE 1 Applying the constant fun
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We conclude this section with the s
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EXAMPLE 6 Connecting the derivative
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x 1 8. Determine the slope of the
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Section 2.3—The Product Rule In t
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EXAMPLE 3 Selecting an efficient st
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EXAMPLE 6 Selecting a strategy to d
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PART B dy 5. Determine the value of
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9. Determine the equation of the ta
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EXAMPLE 1 Applying the quotient rul
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Exercise 2.4 PART A 1. What are the
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Section 2.5—The Derivatives of Co
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with respect to x is equal to the p
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EXAMPLE 7 Combining derivative rule
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Exercise 2.5 PART A 1. Given f 1x2
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Technology Extension: Derivatives o
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Key Concepts Review Now that you ha
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9. For what values of x does the cu
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24. At a manufacturing plant, produ
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Chapter 3 DERIVATIVES AND THEIR APP
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4. Determine the area of each figur
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Section 3.1—Higher-Order Derivati
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Motion on a Straight Line An object
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d. The object moves in a positive d
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EXAMPLE 5 Analyzing motion under gr
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Exercise 3.1 C K PART A 1. Explain
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T 12. A dragster races down a 400 m
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H. Repeat part D for the following
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Only t 3 is in the given interval,
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IN SUMMARY Key Ideas • The maximu
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T PART B 4. Using the algorithm for
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Mid-Chapter Review 1. Determine the
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Section 3.3—Optimization Problems
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For extreme values, set V¿1x2 0.
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Exercise 3.3 C PART A 1. A piece of
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a. Determine the dimensions that sh
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The revenue function is R1x2 17 0
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The minimal cost is approximately $
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T C 8. The fuel cost per hour for r
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CAREER LINK WRAP-UP Investigate and
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10. For each of the following cost
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s1t2 t 26. Find the absolute maxi
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Chapter 4 CURVE SKETCHING If you ar
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5. Determine the derivative of each
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Section 4.1—Increasing and Decrea
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dy Since this is a polynomial funct
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IN SUMMARY Key Ideas • A function
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9. Each of the following graphs rep
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Solution dy First determine dx . dy
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Note that there is no value of x fo
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EXAMPLE 4 Graphing the derivative g
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4. Find the x- and y-intercepts of
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Section 4.3—Vertical and Horizont
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The behaviour of the graph can be i
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EXAMPLE 2 Expressing a polynomial f
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When lim f 1x2 k or lim f 1x2 k,
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For horizontal asymptotes, 3x f 1x2
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Now let's consider the straight lin
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Exercise 4.3 PART A 1. State the eq
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12. Use the features of each functi
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11. a. What does f ¿1x2 7 0 imply
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From these investigations, we can m
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Setting dy dx 0, we obtain 3 1x 2
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The second derivative of f 1x2 is f
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Exercise 4.4 K PART A 1. For each f
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Section 4.5—An Algorithm for Curv
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Therefore, by the second derivative
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Interval 1, 12 11, 0.82 10.8, 22 12
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K A 1x PART B 4. Use the algorithm
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Key Concepts Review In this chapter
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5. For each of the following, check
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17. If f 1x2 x3 8 , determine the
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Chapter 5 DERIVATIVES OF EXPONENTIA
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Radian Measure A radian is the meas
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5. Convert the following angles to
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Section 5.1—Derivatives of Expone
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From the investigation, you should
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EXAMPLE 4 Connecting the derivative
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A C PART B 6. Determine the equatio
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Section 5.2—The Derivative of the
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In general, for the exponential fun
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Solution a. January 1, 1900, is exa
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Section 5.3—Optimization Problems
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The average revenue to the company
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Exercise 5.3 PART A 1. Use graphing
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12. Find the maximum and minimum va
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9. The rapid growth in the number o
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INVESTIGATION 2 A.Using your graphi
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With practice, you will learn how t
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We evaluate f 1x2 at the critical n
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A T 6. Determine the absolute extre
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Derivatives of Composite Functions
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Review Exercise 1. Differentiate ea
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18. The position of a particle is g
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Chapter 5 Test dy 1. Determine the
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8. Use algebraic methods to evaluat
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f 1x2 142e 5x1 24. For each functi
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Review of Prerequisite Skills In th
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CAREER LINK Investigate CHAPTER 6:
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What is a Vector? A vector is a mat
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EXAMPLE 1 B A E D C Connecting vect
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Page 283 and 284: Section 6.2—Vector Addition In th
Page 285 and 286: the overall magnitude would be equa
Page 287 and 288: Solution c b a a - b + c a - b c a
Page 289 and 290: W N S E The vectors are drawn so th
Page 291 and 292: Exercise 6.2 PART A 1. The vectors
Page 293 and 294: 10. a. In ! the ! example ! involvi
Page 295 and 296: 0 0 The previous example illustrate
Page 297 and 298: Solution a. 30˚ y x 2x-y 2x -y 30
Page 299 and 300: Solution Draw a sketch and determin
Page 301 and 302: 8. The two vectors a ! and b ! are
Page 303 and 304: Section 6.4—Properties of Vectors
Page 305 and 306: Demonstrating the distributive law
Page 307 and 308: IN SUMMARY Key Idea • Properties
Page 309 and 310: Mid-Chapter Review 1. ABCD is a par
Page 311 and 312: Section 6.5—Vectors in R 2 and R
Page 313 and 314: Right-Handed System of Coordinates
Page 315 and 316: Solution a. A16, 0, 02 is a point o
Page 317 and 318: There is one further observation th
Page 319 and 320: C A 14. a. What is the equation of
Page 321 and 322: R 2 EXAMPLE 1 Representing vectors
Page 323 and 324: EXAMPLE 2 Representing the sum and
Page 325 and 326: EXAMPLE 5 Calculating the magnitude
Page 327 and 328: A 10. Parallelogram is determined b
Page 329 and 330: EXAMPLE 1 Representing vectors in R
Page 331: . Using components, a ! b ! c !
Page 335 and 336: Section 6.8—Linear Combinations a
Page 337 and 338: In R 2 , it is possible to take any
Page 339 and 340: Geometrically, the linear combinati
Page 341 and 342: IN SUMMARY Key Ideas • In R 2 , O
Page 343 and 344: CAREER LINK WRAP-UP Investigate and
Page 345 and 346: Review Exercise 1. Determine whethe
Page 347 and 348: 15. A rectangular prism measuring 3
Page 349 and 350: Chapter 6 Test 1. The vectors a ! ,
Page 351 and 352: Review of Prerequisite Skills In th
Page 353 and 354: Section 7.1—Vectors as Forces The
Page 355 and 356: of 6 cm, also pointing east. The ve
Page 357 and 358: is drawn approximately to scale, an
Page 359 and 360: The magnitude of the vertical compo
Page 361 and 362: ! T1 sin 105° 1961sin 45°2 T ! 1
Page 363 and 364: 49 34 30 cos CBA 1 cos CBA 2 120
Page 365 and 366: C T f 3 40 N O 35 N 45° 30 N f 2 2
Page 367 and 368: Solution We start by drawing positi
Page 369 and 370: v a v + w w 20 triangles, Solving t
Page 371 and 372: A T C 9. A small airplane has an ai
Page 373 and 374: Perhaps the most important observat
Page 375 and 376: If we look at the right-angled tria
Page 377 and 378: Solution Consider the following dia
Page 379 and 380: A T 10. What is the value of the do
Page 381 and 382: Expanding, we get b 2 1 2a 1 b 1
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. 0 a ! 0 2 @b ! 112 2 122 2 142
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One of the most important propertie
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4. a. From the set of vectors e11,
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Mid-Chapter Review 1. a. If 0 a ! 0
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Section 7.5—Scalar and Vector Pro
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EXAMPLE 1 Reasoning about the chara
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x EXAMPLE 3 z P (2, 1, 4) g b a O(0
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EXAMPLE 4 Calculating a specific di
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IN SUMMARY Key Idea • A projectio
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B C 12. In the diagram shown, ^ ABC
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a 3 b, k = 1 O b 3 a, k = -1 b a is
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If we carry out an identical proced
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EXAMPLE 2 Calculating cross product
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K A C T 4. Calculate the cross prod
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EXAMPLE 1 Using the dot product to
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. We start by constructing position
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EXAMPLE 4 Using the cross product t
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Review Exercise 1. Given that a !
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18. For the vectors m ! 1 V3, 2, 3
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Chapter 7 Test 1. Given the vectors
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Both of these vectors can be multip
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c. If the point Q121, 232 lies on t
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In this section, the vector and par
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C K A T 6. a. If the equation of a
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EXAMPLE 1 Representing the Cartesia
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It is not possible, in this case, t
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AP ! 1x 4, y 1222 1x 4, y 22.
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u cos 1 a 3 12 1 10 21 25 2 b u
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A T 10. For each pair of lines, det
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is its direction vector. If represe
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EXAMPLE 4 Representing the equation
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C A T 6. a. Determine parametric eq
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13. The Cartesian equation of a lin
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s t s(1, 2, 1) t(0, 2, 1), s, tR P
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After deriving vector and parametri
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EXAMPLE 4 Representing the equation
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A K T 7. a. Determine parameters co
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To derive the equation of this plan
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A number of observations can be mad
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When we considered lines in R 2 , w
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IN SUMMARY Key Idea • The Cartesi
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Section 8.6—Sketching Planes in R
Page 473 and 474:
EXAMPLE 2 Representing the graph of
Page 475 and 476:
EXAMPLE 5 Graphing planes whose Car
Page 477 and 478:
IN SUMMARY Key Idea • A sketch of
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Review Exercise 1. Determine vector
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20. Calculate the acute angle that
Page 485 and 486:
Chapter 8 Test 1. a. Given the poin
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4 13 s2 211 4s2 12 8s2 8 0 1
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Method 2: Again, this result can be
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We can now select any two of the th
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IN SUMMARY Key Ideas • Line and p
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A T 11. a. Show that the lines and
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equations. Since the lines would be
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Solution 1: Interchange equations 1
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Substituting into the second equati
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1: Multiply equation 1 by k, and ad
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K C PART B 4. Solve each system of
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Section 9.3—The Intersection of T
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If we had solved the system using e
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then x 3s 1. Now it is a matter o
Page 517 and 518:
Exercise 9.3 C K PART A 1. A system
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Mid-Chapter Review 1. Determine the
Page 521 and 522:
Section 9.4—The Intersection of T
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1: Create two new equations, 4 and
Page 525 and 526:
Thus, 7y 5t 3. Dividing by 7, we g
Page 527 and 528:
Inconsistent Systems for Three Equa
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Therefore, we can choose ! ! ! m 1
Page 531 and 532:
Exercise 9.4 PART A 1. A student is
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9. Solve each system of equations u
Page 535 and 536:
Section 9.5—The Distance from a P
Page 537 and 538:
EXAMPLE 1 Calculating the distance
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In triangle PQR, sin u d @ QP ! @
Page 541 and 542:
Exercise 9.5 PART A 1. Determine th
Page 543 and 544:
Section 9.6—The Distance from a P
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It is also possible to use the dist
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p 1 p 2 U V d L 1 : r = (-2, 1, 0)
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The required distance between the t
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K A T PART B 2. Determine the follo
Page 553 and 554:
Review Exercise 1. The lines 2x y
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14. You are given the lines , and r
Page 557 and 558:
Chapter 9 Test 1. a. Determine the
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P(1, -2, 4) Q P9 2x - 3y - 4z + 66
Page 561 and 562:
29. A line that passes through the
Page 563 and 564:
Solution a. Differentiate both side
Page 565 and 566:
Exercise PART A 1. State the chain
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dA b. To determine differentiate A
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1 16 dh dt Therefore, at the momen
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11. Two cyclists depart at the same
Page 573 and 574:
Solution a. y ln15x2 Using the cha
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x1x 42 0 x 4 or x 0 But x 0 is
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The Derivatives of General Logarith
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The Derivative of a Composite Funct
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To solve this, we take the natural
Page 583 and 584:
Exercise PART A 1. Differentiate ea
Page 585 and 586:
y eliminating unknowns. In Example
Page 587 and 588:
Properties of a Matrix in Row-Echel
Page 589 and 590:
Exercise PART A 1. Write an augment
Page 591 and 592:
12. Determine the equation of the p
Page 593 and 594:
1 0 0 18 4 (row 3) row 1 £ 0 1 0
Page 595 and 596:
Finally, convert the entry in the s
Page 597 and 598:
Review of Technical Skills Appendix
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3 Evaluating a Function 1. Enter th
Page 601 and 602:
7 Making a Table of Differences To
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4. Cursor along the curve to any po
Page 605 and 606:
5. Display and analyze the results.
Page 607 and 608:
14 Graphing a Trigonometric Functio
Page 609 and 610:
2. Enter the second equation. Press
Page 611 and 612:
Use either the calculator keypad or
Page 613 and 614:
20 Graphing the Derivative of a Fun
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4. Create a function. Right-click t
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composition: the process of combini
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G geometric vectors: vectors that a
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ationalizing the denominator: the p
Page 623 and 624:
Answers Chapter 1 0 0 0 0 0 Review
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d. about 1 e. about 7 8 f. no tang
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d. 13. m 3; b 1 14. a 3, b 2, c
Page 629 and 630:
Review Exercise, pp. 56-59 1. a. 3
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19. a. y 7 b. y 5x 5 c. y 18x 9
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20. a. 34.3 m> s b. 39.2 m> s c. 54
Page 635 and 636:
17. a. 100 bacteria b. 1200 bacteri
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11. a. b. 160x y 16 0 60x y 61
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3. 1 2x 4. a. x 2 15x 6 b. 6012x
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14. t 1 s; away 15. a. s1t2 kt 2
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14. a. triangle side length 0.96 cm
Page 645 and 646:
Review Exercise, pp. 156-159 11. 20
Page 647 and 648:
c. i. ii. iii. d. i. ii. iii. 5 4 3
Page 649 and 650:
. local minimum: 11.41, 39.62, loca
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2. increasing: x 6 1 and x 7 2, dec
Page 653 and 654:
to a zero of its derivative, the nu
Page 655 and 656:
7. (-2, 10) 10 8 y 10. a. 8 y e. 4
Page 657 and 658:
4. hole at x 2; large and negative
Page 659 and 660:
sin x b. 1 sin 2 tan x sec x x L
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12. a. no maximum or minimum value
Page 663 and 664:
Review Exercise, pp. 263-265 1. a.
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x 2. 5. a. 19 000 fish> year b. 23
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Section 6.1, pp. 279-281 6. a. b. c
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17. P G 4. Answers may vary. For ex
Page 671 and 672:
11. a. AG ! a ! b ! c ! , b. AG
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d. OD ! 11, 1, 12 (0, 0, 1) (1, 0,
Page 675 and 676:
Section 6.7, pp. 332-333 1. a. 1i !
Page 677 and 678:
24. 25. a. 0a ! b. 0a ! 0 2 0b !
Page 679 and 680:
. Since the equilibrant is directed
Page 681 and 682:
7. a. scalar projection: 0, vector
Page 683 and 684:
2. a. 3 b. 7 c. 43 d. 217 e. 5 f. 1
Page 685 and 686:
cos A 1 cos B 1 cos C 1 area of t
Page 687 and 688:
. r ! 11, 1, 02 t10, 1, 12, tR; x
Page 689 and 690:
2. 12, 3, 42 3. P must lie on plane
Page 691 and 692:
25. A plane has two parameters, bec
Page 693 and 694:
coincident with the plane, meaning
Page 695 and 696:
Mid-Chapter Review, pp. 518-519 1.
Page 697 and 698:
8. a. b. y 1 z 1 4 , 2 c. x 3t
Page 699 and 700:
10. vector equation: r ! 10, 0, 42
Page 701 and 702:
. 23. a. b. 2a 1 2 b a 6 7 , 2 7 ,
Page 703 and 704:
16. 17. 18. 19. 2 3 4 m>min 144 m>m
Page 705 and 706:
ln x 1 e. ln 2 4x 1 x ln 13x 2 2
Page 707 and 708:
Index A Absolute extrema, 130, 132,
Page 709:
normal, 461-469, 486, 512, 524 para
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