[" If "f'(x)=sin x+sin4x*cos x" then "f'(2x^(2)+(pi)/(2))" at "],[x=sqrt((pi)/(2))" is equal to "]

Let f(x) be a differentiable function such that f'(x)=sinx+sin4xcosx. Then f'(2x^(2)+(pi)/(2))"at "x=sqrt((pi)/(2)) is equal to

Let f(x) be a differentiable function such that f'(x)=sinx+sin4xcosx. Then f'(2x^(2)+(pi)/(2))"at "x=sqrt((pi)/(2)) is equal to

If f(x)=|cos x-sin x|, then f'((pi)/(2)) is equal to

If f(x) =cos (sin x^(2)) , then f'(x) at x=sqrt(pi/2) is

If f(x)=sin(2x^(2)-2[x]) for 0

If f(x)=(1-sin^(2)x)/(1+sin^(2)x)," then "3f'((pi)/(4))-f((pi)/(4))=