Wednesday, March 20, 2013

6.4: Sum and Difference Formulas

Objectives:
  • Use Sum and Difference Formulas to evaluate trig functions, verify identities, and solve trig equations.

Example 1a

Example 1b

Student example 1

Example 2

Student example 2

Example 3

Student example 3

Problem set 6.4
4, 6, 12, 17, 24, 26, 37, 38, 70

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