Evaluate the following composite functions, giving answers in exact form. Use of right triangles is recommended here. • cos(arccos(V5/s3)) • sin(arcsin(7)) • cot(arctan(2/7)) • cos(arcsin('/2)) • sin(arccos(/s)) • tan(arcsin(y)) for -1< y< 1

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A: It is known that sin-1x can also be written as arcsinx.

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