Pc 5.4 notes_sum-diff
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Simplifying Radicals Mini- lesson
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Examples of the sum and difference formulas for trig functions.
Transcript of Pc 5.4 notes_sum-diff
Simplifying Radicals Mini-lesson
What about this?
5.4 Sum and Difference Formulas
Find the exact value:sin 75°
Find the exact value:sin 75°
Ex. 1) Find the exact value of the following functions:
tan 105°
cos 11π/12
Ex. 2) Evaluate without a calculator.cos 78°cos 18° + sin 78°sin 18°
Ex. 3) Verify
Ex. 4)
Assignment:
#24 p. 404#4, 7, 11, 14, 25, 38, 56, 58, 61
