Determine if f(x) is differentiable at x = a using the definition of differentiability.

Determine if the function f(x) = Vx* is differentiable at x =0 . If not, identify why. O a.) f(x)= \\x* is not differentiable at x =0 because / (0) is not defined. O b.) (x)=Vx* is not differentiable atx =0 because lim v x* does not exist x +0 ") f(x)=Vx* is differentiable at x = 0 . O d.) f(x)=vx* is not differentiable atx =0 because /(0) is not defined