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Question Number 124956 by liberty last updated on 07/Dec/20
y=sec−1(ex4).Finddy=?
Answered by bemath last updated on 07/Dec/20
⇒ex4=secyorcosy=1ex4cosy=e−x4−sinydy=−4x3e−x4dxdy=4x3e−x4sinydx=4x3e−x41−e−2x4dxdy=4x3ex4sin(sec−1(ex4))dx
Answered by Dwaipayan Shikari last updated on 07/Dec/20
secy=ex4⇒−log(cosy)=x4⇒sinycosy.dydx=4x3⇒dydx=4x3coty⇒4x3cot(sec−1(ex4))
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