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1. (7pt) Find the exact value of a) cos[sin -1(-3)] b) costan '(-2)] 2. (3pt) Find the exact value of sec-1 ( )

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1. (7pt) Find the exact value of a) cos[sin -1(-3)] b) costan '(-2)] 2. (3pt) Find the exact value of sec-1 ( )

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