Find the exact value, if any, of each composite function. If there is no value say it
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Question:
Find the exact value, if any, of each composite function. If there is no value say it is "not defined." Do not use a calculator.
1) cos-1 (cos 4π/5)
2) sin-1 (sin 9π/8)
3) cos-1 [cos (-π/4)]
4) sin (sin-1 1/4)
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