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The Inverse Trigonometric Functions Section 4.2

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Objectives Find the exact value of expressions involving the inverse sine, cosine, and tangent functions. Know the definition of the inverse secant, cosecant, and cotangent functions. Use a calculator to evaluate sec -1 x, csc - 1 x, and cot -1 x

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Find the exact value of sin - 1 (sin 5π/4)

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Find the exact value of sin(tan - 1 (1/2))

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Find the exact value of cos(sin -1 (-1/3))

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Inverse Functions csc -1 x (Domain [-π/2, π/2]) sec -1 x (Domain [0, π]) cot -1 x (Domain [-π/2, π/2]) Meaning: The cosecant/secant/cotangent of what angle equals x?

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Page 236 #39

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Pages 236-237 (10-56 even)

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4.4 Day 1 Trigonometric Functions of Any Angle –Use the definitions of trigonometric functions of any angle –Use the signs of the trigonometric functions.

4.4 Day 1 Trigonometric Functions of Any Angle –Use the definitions of trigonometric functions of any angle –Use the signs of the trigonometric functions.

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