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In Exercises 27–38, use a calculator to find the value of each expression rounded to two decimal places.tan⁻¹ (−20)
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5. Inverse Trigonometric Functions and Basic Trigonometric Equations
Inverse Sine, Cosine, & Tangent
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In Exercises 39–54, find the exact value of each expression, if possible. Do not use a calculator.sin(sin⁻¹ 0.9)
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