Chapter 5

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Example 3 Given sin α = 5 13 with the terminal side in the 1st quadrant, and tan β = − 24 7 with the terminal side in the 2nd quadrant, compute the value of cos(α + β).
Page 1: Ch 5.1 : More on verifying identiti
Page 5 and 6: Example 1 Prove that (1 − tan t)
Page 7 and 8: Example 3 Prove that cos t 1 + sec
Page 9 and 10: Class Exercises Verify the followin
Page 11 and 12: 5.2: The Sum and Difference Identit
Page 13: Sum and difference identities for T
Page 17 and 18: Example 6 Prove that sin(α + β) s
Page 19 and 20: Ch 5.3 : The Double-Angle and Half-
Page 21 and 22: Example 3 : Using double-angle iden
Page 23 and 24: Example 4 Prove that 8 sin 4 x = 3
Page 26 and 27: Example 5 Use the half-angle identi
Page 28 and 29: Ch 5.4 : The Product-to-Sum Identit
Page 31 and 32: Example Rewrite the following produ
Page 34 and 35: The Sum-to-Product Identities (for
Page 36: Class Exercise Verify the following

Chapter 5

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