Trigonometric Identities

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Caution Verifying identities is not the same a solving equations. Techniques used in solving equations, such as adding the same terms to both sides, should not be used when working with identities since you are starting with a statement that may not be true. Copyright © 2009 Pearson Addison-Wesley 1.1-9 5.2-9
Verifying <strong>Identities</strong> by Working with One Side To avoid the temptation to use algebraic properties of equations to verify identities, one strategy is to work with only one side and rewrite it to match the other side. Copyright © 2009 Pearson Addison-Wesley 5.2-10
Page 1 and 2: 5 Trigonometric Identities Copyrigh
Page 3 and 4: 5.1 Fundamental Identities Fundamen
Page 5 and 6: Fundamental Identities Pythagorean
Page 7 and 8: Example 1 If and θ is in quadrant
Page 9 and 10: Example 1 (b) cot(- θ) Copyright
Page 11 and 12: Example 2 Express cos x in terms of
Page 13 and 14: Caution When working with trigonome
Page 15 and 16: 5 Trigonometric Identities 5.1 Fund
Page 17 and 18: Hints for Verifying Identities Lea
Page 19 and 20: Hints for Verifying Identities The
Page 21: Hints for Verifying Identities If
Page 25 and 26: Example 2 Copyright © 2009 Pearson
Page 31 and 32: Example 5 Right side of given equat
Page 37 and 38: 5.3 Sum and Difference Identitites
Page 39 and 40: Difference Identity for Cosine Sinc
Page 41 and 42: Difference Identity for Cosine Subt
Page 43 and 44: Cosine of a Sum or Difference Copyr
Page 45 and 46: Example 1(b) Find the exact value o
Page 47 and 48: Cofunction Identities Similar ident
Page 51 and 52: Applying the Sum and Difference Cop
Page 63 and 64: 5.4 Sum and Difference Identities f
Page 65 and 66: Sum and Difference Identities for S
Page 67 and 68: Sum and Difference Identities for T
Page 69 and 70: Sum and Difference Identities for T
Page 71 and 72: Example 1(a) Find the exact value o
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Example 1(c) Find the exact value o
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Example 3 Copyright © 2009 Pearson
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5 Trigonometric Identities Copyrigh
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5.5 Double-Angle Identities Double-
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Copyright © 2009 Pearson Addison-W
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Example 4 Simplify each expression.
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Example 6 where V is the voltage an
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5 Trigonometric Identities 5.1 Fund
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Double-Angle Identities Copyright
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Example 5 VERIFYING AN IDENTITY Ver
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Trigonometric Identities

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