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1 5.4 Sum and Difference Formulas Essential Question: How do you evaluate the exact value of a "non-special" angle? Standard: Trig 10.0

Transcript of Pc 5.4 notes

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5.4 Sum and Difference FormulasEssential Question:How do you evaluate the exact value of a "non-special" angle?

Standard: Trig 10.0

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5.4 Sum and Difference Formulas

Find the exact value:sin 75°

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Find the exact value:sin 75°

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Ex. 1﴿ Find the exact value of the following functions:

tan 105°

cos 11π/12

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Ex. 2﴿ Evaluate without a calculator.cos 78°cos 18° + sin 78°sin 18°

Ex. 3﴿ Verify 

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Ex. 4﴿

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Assignment:

5.4 p. 404#4, 7, 11, 14, 15, 25, 39, 41, 56, 61

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