OpenStax, Algebra and Trigonometry 2e §9.2 Sum and Difference Identities · Exercise 30 · Trigonometry · Compound & multiple angles

Sum and Difference Identities · Exercise 30

Simplify the expression, and then graph both expressions as functions to verify the graphs are identical. Confirm your answer using a graphing calculator.

$cos (\frac{7 π}{6} + x)$

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~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §9.2 Sum and Difference Identities · Exercise 30

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