(x)+x)2 Find f' (x) where f(x) = In (hint: simplify first using properties of logarithms before Vx-+1 differentiating).\fGiven a differentiable function f(x), which of the following is the derivative of f(x*)? O 4x3 Of(4x3) Of'( 4x3 ) O 4x3 f' (x4 ) 4x3 f(x4)