For the following exercises, evaluate the product for the given expression using a sum or difference of two functions. Write the exact answer. 2cos (/5) cos (/3)

Chapter 7, Review Exercises #32

For the following exercises, evaluate the product for the given expression using a sum or difference of two functions. Write the exact answer.

2cos (π/5) cos (π/3)

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Related Book For answer-question

Precalculus

1st Edition

Authors: Jay Abramson

ISBN: 9781938168345