OpenStax, Algebra and Trigonometry 2e §9.2 Sum and Difference Identities · Example 4 · Trigonometry · Compound & multiple angles

Finding the Exact Value of an Expression Involving an Inverse Trigonometric Function

Find the exact value of $s in (co s^{- 1} \frac{1}{2} + s i n^{- 1} \frac{3}{5}) .$ Then check the answer with a graphing calculator.

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OpenStax, Algebra and Trigonometry 2e · §9.2 Sum and Difference Identities · Example 4

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