InterviewSolution
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InterviewSolution
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Find the derivative of the following functions (it is to be understand that a,b,c,d,p,q,r and s are fixed non-zero constants and m and n are integers): `(x^(2)cos((pi)/(4)))/(sin x)` |
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Answer» Let `y=(x^(2)cos((pi)/(4)))/(sin x)` `(dy)/(dx)=cos (pi)/(4).[(sin x (d)/(dx)x^(2)-x^(2)(d)/(dx)sinx)/((sin x)^(2))]` `=(cos (pi)/(4)(2x sin x-x^(2)cos x))/(sin^(2)x)` `=(xcos(pi)/(4)(2sin x-x cos x))/(sin^(2)x)` |
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