Find the derivatives of the functions at the indicated points 2 cos x at x = \( \dfrac{\pi}{2}\)

Given:

f (x) = 2 cos x

By using the derivative formula,

Derivative off (x)= -2

Differentiate with respect to x x^{n} log_{a} x

Differentiate with respect to x x^{n} tan x

Differentiate with respect to x x^{2} e^{x} log x

Differentiate with respect to x x^{3} e^{x}

Differentiate with respect to x x^{3} sin x