Differentiate the following functions with respect to x:



Now




Using cos2θ = 1 – 2sin2θ


y = sin–1(sinθ)


Considering the limits,


0 < x < 1


0 < cos2θ < 1




Now, y = sin–1(sinθ)


y = θ



Differentiating w.r.t x, we get



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