For the following exercises, algebraically determine whether each of the given expressions is a true identity. If it is not an identity, replace the right-hand side with an expression equivalent to the left side. Verify the results by graphing both expressions on a calculator. cos(10θ) + cos(6θ)/cos(6θ) − cos(10θ) = cot(2θ)cot(8θ)

Chapter 7, 7.4 Exercises #45

For the following exercises, algebraically determine whether each of the given expressions is a true identity. If it is not an identity, replace the right-hand side with an expression equivalent to the left side. Verify the results by graphing both expressions on a calculator.

cos(10θ) + cos(6θ)/cos(6θ) − cos(10θ) = cot(2θ)cot(8θ)

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Authors: Jay Abramson

ISBN: 9781938168345