Find the derivative at `x = 2` of the function `f(x) = 3x`.

Find the derivative of f(x) = 10x.

Find the derivative of the function given by f(x)= cos (x^2) .

Find the derivative of the function f(x)=2x^(2)+3x-5" at "x=-1 . Also prove that f'(0)+3f'(-1)=0 .

Find the derivative of f(x) = x^(2) .

Find the derivative of the constant function f (x) = a for a fixed real number a.

Find the derivative of the functions given by f(x)= (1+x)(1+x^(2))(1+x^(4))(1+x^(8)) and hence find f'(1).

The domain of the derivative of the function f(x) = {(tan^(-1)x, |x|le1),(1/2(|x|-1), |x|gt1):} is

Find the second order derivatives of the function x. cos x

The function f(x)=x^(3)-3x is :

Find the derivative of x^2-2 at x=0.