The derivative of f(x)=x3f(x) = x^3f(x)=x3 at x=ax=ax=a is equal to f(a)/af(a)/af(a)/a. What is aaa?
a=0a=0a=0
a=1a=1a=1
a=3a=3a=3
Any a≠0a \neq 0a=0