Find the derivative of the following function at the indicated point: `x"\ "a t"\ "x=1`

Find the derivative of the following function at the indicated point: sin2x"\ "a t"\ "x=pi/2

Find the derivative of the following function at the indicated point: 2cosx"\ "a t"\ "x="\ "pi/2

Find the derivative of the function at the indicated point: sin x \ at \ x=pi/2

Find derivative of the following functions: x/(1+tanx)

Find the derivative of the following function with respect to 'x' : x cos x

Find the derivative of the following function with respect to 'x' : tan 2x

Find the derivative of the following function with respect to 'X' : logsinx

Find the derivatives of the following function from first principle: x^3-27

Find the derivative of the following function w.r.t 'x' : 3 sin x+ b cos x

Find the derivative of the following function with respect to 'x' : tan^(2)x