Question: Simplify the expressions 1. sin^-1 (cos (-/4)) 2. cos^-1 (csc /3) 3. sin (2sin^-1 1/2 - tan^-1 3/3)

Simplify the expressions 1. sin^-1 (cos (-/4)) 2. cos^-1 (csc /3) 3. sin (2sin^-1 1/2 - tan^-1 3/3)

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