OpenStax, Precalculus 2e §7.2 Sum and Difference Identities · Exercise 32 · Trigonometry · Compound & multiple angles

Sum and Difference Identities · Exercise 32

Simplify the expression, and then graph both expressions as functions to verify the graphs are identical.

$cos (\frac{5 π}{4} + x)$

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OpenStax, Precalculus 2e · §7.2 Sum and Difference Identities · Exercise 32

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