If `y=log(sinx)` , prove that `(d^3y)/(dx^3)=2cosx cos e c^3x` .
If `y=log(sinx)` , prove that `(d^3y)/(dx^3)=2cosx cos e c^3x` .
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If `y=log(sinx)` , prove that `(d^3y)/(dx^3)=2cosx cos e c^3x` .