If f(x) = sin x - cos2x, find `f'(π/6)` .

f(x)=(1)/(sin x cos x) find ,f'(x)=?

If f(x)=|cos x-sin x|, find f'((pi)/(6)) and f'((pi)/(3))

If f(x)=|cos x-sin x|, find f'((pi)/(6)) andf '((pi)/(3))

If f(x)=cos x+sin x . find f ((pi)/(2)) .

If f(x) = 3(sin x - cos x)^(4) + 6(sin x + cos x)^(2) +4(sin^(6)x + cos^(6)x) and f(pi/7) = 13 then find f (2pi/7) .

If f'(x)=a sin x+b cos x and f'(0)=4,f(0)=3,f((pi)/(2))=5, find f(x)

20. If f(x)=sin^(2)x-cos^(2)x, Then find f((pi)/(12))

If f(x)=cos x+sin x, find f((pi)/(2))