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Differentiate \( \cos^{-1}x^4\) w.r.t. \( x.\)

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Given y=cos^-1x^4 Differentiating w.r.t x by appying chain rule we get, Dy/dx = (-1/√x^2-1)4x^3 Therefore dy/dx = -4x^3/√x^2-1
answered Nov 30, 2013 by vijayalakshmi_ramakrishnans

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