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Find an algebraic expression for cos2sin1 x Do not simplifyS

Find an algebraic expression for cos(2sin^-1 x). Do not simplify.

Solution

cos(2A)=1-2(sinA)2

cos(2sin-1(x))=1-2(sin(sin-1(x)))2

cos(2sin-1(x))=1-2(x)2

cos(2sin-1(x))=1-2x2

Find an algebraic expression for cos(2sin^-1 x). Do not simplify.Solutioncos(2A)=1-2(sinA)2 cos(2sin-1(x))=1-2(sin(sin-1(x)))2 cos(2sin-1(x))=1-2(x)2 cos(2sin-

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