OpenStax, Algebra and Trigonometry 2e §8.3 Inverse Trigonometric Functions · Example 8 · Trigonometry · Inverse functions

Finding the Cosine of the Inverse Sine of an Algebraic Expression

Find a simplified expression for $cos (s i n^{- 1} (\frac{x}{3}))$ for $- 3 \leq x \leq 3.$

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OpenStax, Algebra and Trigonometry 2e · §8.3 Inverse Trigonometric Functions · Example 8

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