Calculus- Early Transcendentals, 2021a

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40 Review 1.3.4 Graphs of Trigonometric Functions The graph of the functions sinx and cosx can be visually represented as: Both sinx and cosx have domain (−∞,∞) and range [−1,1]. Thatis, −1 ≤ sinx ≤ 1 − 1 ≤ cosx ≤ 1. The zeros of sinx occur at the integer multiples of π, that is, sinx = 0 whenever x = nπ, wheren is an integer. Similarly, cosx = 0 whenever x = π/2 + nπ,wheren is an integer. The six basic trigonometric functions can be visually represented as: Both tangent and cotangent have range (−∞,∞), whereas cosecant and secant have range (−∞,−1] ∪ [1,∞). Each of these functions is periodic. Tangent and cotangent have period π, whereas sine, cosine, cosecant and secant have period 2π. 1.3.5 Trigonometric Identities There are numerous trigonometric identities, including those relating to shift/periodicity, Pythagoras type identities, double-angle formulas, half-angle formulas and addition formulas. We list these below.
1.3. Trigonometry 41 1. Shifts and periodicity sin(θ + 2π) = sinθ cos(θ + 2π) = cosθ tan(θ + 2π) = tanθ sin(θ + π) = −sinθ cos(θ + π) = −cosθ tan(θ + π) = tanθ sin(−θ) = −sinθ cos(−θ) = cosθ tan(−θ) = −tanθ ( π ) sin 2 − θ ( π ) = cosθ cos 2 − θ ( π ) = sinθ tan 2 − θ = cotθ 2. Pythagoras type formulas •sin 2 θ + cos 2 θ = 1 •tan 2 θ + 1 = sec 2 θ •1+ cot 2 θ = csc 2 θ 3. Double-angle formulas •sin(2θ)=2sinθ cosθ cos(2θ) = cos 2 θ − sin 2 θ • = 2cos 2 θ − 1 = 1 − 2sin 2 θ. 4. Half-angle formulas •cos 2 θ = 1 + cos(2θ) 2 •sin 2 θ = 1 − cos(2θ) 2 5. Addition formulas •sin(θ + φ)=sinθ cosφ + cosθ sinφ •cos(θ + φ)=cosθ cosφ − sinθ sinφ •tan(θ + φ)= tanθ + tanφ 1 − tanθ tanφ •sin(θ − φ)=sinθ cosφ − cosθ sinφ •cos(θ − φ)=cosθ cosφ + sinθ sinφ Example 1.38: Double Angle Find all values of x with 0 ≤ x ≤ π such that sin2x = sinx. Solution. Using the double-angle formula sin2x = 2sinxcosx we have: 2sinxcosx = sinx 2sinxcosx − sinx = 0 sinx(2cosx − 1)=0 Thus, either sinx = 0orcosx = 1/2. For the first case when sinx = 0, we get x = 0orx = π. For the second case when cosx = 1/2, we get x = π/3 (use the special triangles and CAST rule to get this). Thus, we have three solutions: x = 0, x = π/3, x = π. ♣
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with Open Texts Calculus Early Tran
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Page 9 and 10: Calculus: Early Transcendentals an
Page 11 and 12: Table of Contents Table of Contents
Page 13 and 14: v 5.4.3 Taylor Polynomials . . . .
Page 15 and 16: vii 13.2 Limits and Continuity . .
Page 17: Introduction The emphasis in this c
Page 20 and 21: 4 Review In the table, the set of r
Page 22 and 23: 6 Review 1.1.3 The Quadratic Formul
Page 24 and 25: 8 Review 1.1.4 Inequalities, Interv
Page 26 and 27: 10 Review Inequality Rules Add/subt
Page 28 and 29: 12 Review Guidelines for Solving Ra
Page 30 and 31: 14 Review Looking where the
Page 32 and 33: 16 Review Example 1.17: Absolute Va
Page 34 and 35: 18 Review (a) |x|≥2 (b) |x − 3|
Page 36 and 37: 20 Review The most familiar form of
Page 38 and 39: 22 Review Example 1.25: Equa
Page 40 and 41: 24 Review |Δy|, as shown in figure
Page 42 and 43: 26 Review • (h,k) is the vert
Page 44 and 45: 28 Review Determining the Type of C
Page 46 and 47: 30 Review To determine a, we substi
Page 48 and 49: 32 Review (a) A(2,0),B(4,3) (b) A(
Page 50 and 51: 34 Review • Secant (abbreviated b
Page 52 and 53: 36 Review Reading from the unit cir
Page 54 and 55: 38 Review Notice that we can now fi
Page 58 and 59: 42 Review Exercises for 1.3 Exercis
Page 60 and 61: 44 Review Exercise 1.4.7 Simplify t
Page 62 and 63: 46 Functions Example 2.2: Domain of
Page 64 and 65: 48 Functions Example 2.5: Domain Fi
Page 66 and 67: 50 Functions For horizontal and ver
Page 68 and 69: 52 Functions Solution. The domain o
Page 70 and 71: 54 Functions After the positive int
Page 72 and 73: 56 Functions Example 2.11: Determin
Page 74 and 75: 58 Functions Example 2.16: Finding
Page 76 and 77: 60 Functions Since the function f (
Page 78 and 79: 62 Functions Example 2.21: Solve Lo
Page 80 and 81: 64 Functions We can do something si
Page 82 and 83: 66 Functions Cancellation Rules sin
Page 84 and 85: 68 Functions (a) sin −1 ( √ 3/2
Page 86 and 87: 70 Functions Example 2.32: Computin
Page 88 and 89: 72 Functions (a) f (x) (b) − f (x
Page 91 and 92: Chapter 3 Limits 3.1 The Limit The
Page 93 and 94: 3.2. Precise Definition of a Limit
Page 95 and 96: 3.2. Precise Definition of a Limit
Page 97 and 98: 3.3. Computing Limits: Graphically
Page 99 and 100: 3.4. Computing Limits: Algebraicall
Page 101 and 102: 3.4. Computing Limits: Algebraicall
Page 103 and 104: 3.5. Infinite Limits and Limits at
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3.5. Infinite Limits and Limits at
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5 + x −1 (n) lim x→∞ 1 + 2x
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3.6. A Trigonometric Limit 99 Figur
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3.6. A Trigonometric Limit 101 Solu
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3.7. Continuity 103 § § ¥
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3.7. Continuity 105 Definition 3.43
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3.7. Continuity 107 Definition 3.45
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3.7. Continuity 109 Solution. We wi
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3.7. Continuity 111 Therefore, our
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3.7. Continuity 113 Exercise 3.7.3
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116 Derivatives doesn’t meet the
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118 Derivatives of the slope of the
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120 Derivatives algebra to find a s
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122 Derivatives we often use f and
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124 Derivatives you are required to
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126 Derivatives We can summarize
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128 Derivatives 4.2.3 Velocities Su
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130 Derivatives Exercise 4.2.5 Find
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132 Derivatives Proof. For convenie
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134 Derivatives Exercises for Secti
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136 Derivatives since sinx cosx −
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138 Derivatives In practice, of cou
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140 Derivatives Exercises for Secti
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142 Derivatives Exercise 4.5.39 Fin
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144 Derivatives . . . . Figure 4.4:
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146 Derivatives = ( d dx x2 ln2) e
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148 Derivatives Example 4.38: Deriv
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150 Derivatives Example 4.42: Equat
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152 Derivatives Solution. We take l
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154 Derivatives Exercise 4.7.8 Find
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156 Derivatives 4.8.1 Derivatives o
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158 Derivatives Exercise 4.8.4 The
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Chapter 5 Applications of Derivativ
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5.1. Related Rates 163 Solution. He
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5.1. Related Rates 165 Example 5.6:
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5.2. Extrema of a Function 167 Exer
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5.2. Extrema of a Function 169 poin
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5.2. Extrema of a Function 171 Exer
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5.2. Extrema of a Function 173 3. E
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5.2. Extrema of a Function 175 A si
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5.3. The Mean Value Theorem 177 2.
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5.3. The Mean Value Theorem 179
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5.3. The Mean Value Theorem 181 Exe
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5.4. Linear and Higher Order Approx
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5.5. L’Hôpital’s Rule 191 "bou
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5.5. L’Hôpital’s Rule 193 Exam
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5.5. L’Hôpital’s Rule 195 Exer
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5.6. Curve Sketching 197 consistent
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5.6. Curve Sketching 199 Solution.
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5.6. Curve Sketching 201 the concav
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5.6. Curve Sketching 203 If there a
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5.6. Curve Sketching 205 Note that
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5.7. Optimization Problems 207 Guid
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5.7. Optimization Problems 209 is t
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5.7. Optimization Problems 211 (Alt
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5.7. Optimization Problems 213 Exer
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Chapter 6 Integration 6.1 Displacem
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6.1. Displacement and Area 217 Exam
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6.1. Displacement and Area 219 draw
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6.1. Displacement and Area 221 It i
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6.1. Displacement and Area 223
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6.1. Displacement and Area 225 We d
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6.1. Displacement and Area 227 x i
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6.1. Displacement and Area 229 Both
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6.1. Displacement and Area 231 does
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6.2. The Fundamental Theorem of Cal
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6.3. Indefinite Integrals 243 Exerc
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6.3. Indefinite Integrals 245 Solut
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6.3. Indefinite Integrals 247 Exerc
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250 Techniques of Integration This
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252 Techniques of Integration ♣ E
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254 Techniques of Integration u, th
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256 Techniques of Integration 7.2 P
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258 Techniques of Integration = u7
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260 Techniques of Integration and
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262 Techniques of Integration ∫ N
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264 Techniques of Integration To in
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266 Techniques of Integration Exerc
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268 Techniques of Integration Expre
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270 Techniques of Integration The t
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272 Techniques of Integration Examp
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276 Techniques of Integration = sec
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278 Techniques of Integration Find
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280 Techniques of Integration Solut
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282 Techniques of Integration So al
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292 Techniques of Integration There
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294 Techniques of Integration Now u
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296 Techniques of Integration The f
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298 Techniques of Integration (e)
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302 Applications of Integration For
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304 Applications of Integration Sup
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306 Applications of Integration Gui
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308 Applications of Integration The
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310 Applications of Integration . y
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312 Applications of Integration . F
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314 Applications of Integration so
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316 Applications of Integration Exe
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318 Applications of Integration In
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320 Applications of Integration Sol
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322 Applications of Integration mag
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324 Applications of Integration . 1
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326 Applications of Integration and
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328 Applications of Integration Exe
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330 Applications of Integration Unf
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332 Applications of Integration Fig
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334 Applications of Integration is
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Chapter 9 Sequences and Series Cons
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9.1. Sequences 339 log 2 (1 + ε) >
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9.1. Sequences 341 Example 9.8: Con
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9.1. Sequences 343 below it is boun
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9.2. Series 345 If {kx n } ∞ n=0
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9.2. Series 347 for some number s.
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9.3. The Integral Test 349 If all o
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9.3. The Integral Test 351 Proof. W
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9.4. Alternating Series 353 Exercis
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9.5. Comparison Tests 355 Exercises
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9.5. Comparison Tests 357 Solution.
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9.7. The Ratio and Root Tests 359 E
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9.7. The Ratio and Root Tests 361 P
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9.8. Power Series 363 Definition 9.
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Exercise 9.8.2 Find the radius of c
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f ′′ (x)= f ′′′ (x)= ∞
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9.10. Taylor Series 369 Solution. T
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9.11. Taylor’s Theorem 371 a posi
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9.11. Taylor’s Theorem 373 Note t
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Chapter 10 Differential Equations M
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10.1. First Order Differential Equa
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10.1. First Order Differential Equa
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10.2. First Order Homogeneous Linea
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10.3. First Order Linear Equations
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10.4. Approximation 385 Exercises f
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10.4. Approximation 387 y .. 0.5 .
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10.5. Second Order Homogeneous Equa
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10.5. Second Order Homogeneous Equa
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10.6. Second Order Linear Equations
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Chapter 11 Polar Coordinates, Param
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11.1. Polar Coordinates 403 Solutio
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11.2. Slopes in Polar Coordinates 4
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11.3. Areas in Polar Coordinates 40
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11.3. Areas in Polar Coordinates 40
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11.4. Parametric Equations 411 Figu
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11.5 Calculus with Parametric Equat
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11.6. Conics in Polar Coordinates 4
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11.6. Conics in Polar Coordinates 4
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Chapter 12 Three Dimensions 12.1 Th
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12.1. The Coordinate System 421 Now
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12.2. Vectors 423 12.2 Vectors A ve
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12.2. Vectors 425 3.54 0.77 . . . .
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12.3. The Dot Product 427 Exercise
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12.3. The Dot Product 429 Solution.
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12.3. The Dot Product 431 v .. v ..
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12.4. The Cross Product 433 Exercis
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12.4. The Cross Product 435 We know
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12.5. Lines and Planes 437 Exercise
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12.5. Lines and Planes 439 Solution
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12.5. Lines and Planes 441 Example
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12.5. Lines and Planes 443 Exercise
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12.6. Other Coordinate Systems 445
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452 Partial Differentiation the lin
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454 Partial Differentiation Exercis
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456 Partial Differentiation Fortuna
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460 Partial Differentiation paralle
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462 Partial Differentiation 3 z . 2
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466 Partial Differentiation lim ε
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468 Partial Differentiation 13.5 Di
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470 Partial Differentiation Example
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476 Partial Differentiation so we g
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478 Partial Differentiation 0.0 0.2
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480 Partial Differentiation and the
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482 Partial Differentiation xz = 2y
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484 Partial Differentiation x φ .
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486 Multiple Integration point mult
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488 Multiple Integration Figure 14.
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490 Multiple Integration 1 0 0 1 Fi
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492 Multiple Integration Exercise 1
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496 Multiple Integration This examp
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498 Multiple Integration Exercise 1
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500 Multiple Integration Finally, M
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504 Multiple Integration Example 14
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506 Multiple Integration ∫ 1 = 1
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508 Multiple Integration Solution.
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510 Multiple Integration ∫ ∫
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.. 512 Multiple Integration As befo
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514 Multiple Integration y . ......
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516 Multiple Integration ∫∫ Exe
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518 Vector Functions separate funct
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520 Vector Functions = 〈 f ′ (t
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522 Vector Functions Figure 15.6:
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524 Vector Functions 2.0 1.5 1.0 0.
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526 Vector Functions Exercise 15.2.
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528 Vector Functions (This integral
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530 Vector Functions To remove the
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532 Vector Functions Graphing this
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534 Vector Functions Example 15.20
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536 Vector Calculus which is the re
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538 Vector Calculus Since f x = 2e
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540 Vector Calculus Definition 16.4
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542 Vector Calculus Example 16.8: W
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544 Vector Calculus Proof. We write
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546 Vector Calculus Exercise 16.3.2
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548 Vector Calculus In this case, n
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550 Vector Calculus We can now rewr
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552 Vector Calculus 16.5 The Diverg
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554 Vector Calculus The remaining f
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556 Vector Calculus Suppose we inst
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558 Vector Calculus circle of radiu
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560 Vector Calculus Exercise 16.6.7
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562 Vector Calculus we might want t
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564 Vector Calculus where e is an e
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566 Vector Calculus ∫ b = ∫ = a
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Selected Exercise Answers 1.1.1 1.
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571 2.8.4 1. [2,3) ∪ (3,∞) 2. (
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573 4.5.18 −3(4 − x) 2 4.5.19 6
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575 5.1.15 500/ √ 3 − 200 ≈ 8
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577 5.6.21 min at x = 1 5.6.22 none
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579 7.1.2 x 5 /5 + 2x 3 /3 + x +C 7
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581 7.4.19 1/2e x2 +C 7.4.20 x 3 e
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583 7.7.20 diverges 7.7.21 diverges
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585 8.6.5 ¯x = 45/28, ȳ = 93/70 8
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587 9.8.2 R = e 10.1.2 y = arctant
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589 10.6.8 Ae t + Be 3t +(1/2)te 3t
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591 12.5.2 4(x + 1)+5(y − 2) −
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593 13.6.5 f x = 3cos(3x)cos(2y), f
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595 14.3.6 ¯x = 6/5, ȳ = 12/5 14.
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597 15.5.8 〈−3sint,2cost + 1/10
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Index absolute extrema, 172, 206 ab
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INDEX 601 at infinity, 87 indetermi
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Table of Integrals Table of Integra
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∫ 41. sin n ucos m udu= − sinn
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Integrals Involving u 2 − a 2 , a
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∫ du 108. u √ a + bu = √ 1
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