Use the reduction formulas to reduce sin^4 θ to only linear powers of cosine (cos(θ) = ”linear”, (cos^(any power > 1)θ) = not ”linear”)

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A: The solution is shown in step-2

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A: See the details solution in below I am consider  sin(x^2 )

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A: Solve the equation

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A: Since you have posted multiple questions, as per our policy we will answer first question. please…

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