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Please show all steps :) 5. (10pt) Find the exact value, if any, of each function. Do not use calculator. a) tan-'(-1) b) cos-1 (

Please show all steps :)

5. (10pt) Find the exact value, if any, of each function. Do not use calculator. a) tan-'(-1) b) cos-1 ( -13) c) tan '[tan( -") d) cos ! [cos(- SJ ) ]

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