MathematicsMedium179×since 2002Q4240Let f(x) be a polynomial function such that f(x)+f′(x)+f′′(x)=x5+64f(x) + f'(x) + f''(x) = {x^5} + 64f(x)+f′(x)+f′′(x)=x5+64. Then, the value of limx→1f(x)x−1\mathop {\lim }\limits_{x \to 1} {{f(x)} \over {x - 1}}x→1limx−1f(x) is equal to:A−-−15B−-−60C60D15Check answerSkip