OpenStax, Algebra and Trigonometry 2e §7.3 Unit Circle · Exercise 93 · Trigonometry · Unit circle

Unit Circle · Exercise 93

Evaluate.

$s in (\frac{- 9 π}{4}) cos (\frac{- π}{6})$

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OpenStax, Algebra and Trigonometry 2e · §7.3 Unit Circle · Exercise 93

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