Question: If function $f(x)$ is differentiable at $x=a$ then $\lim _{x \rightarrow a} \frac{x^{2} f(a)-a^{2} f(x)}{x-a}$
$2 a f(a)+a^{2} f^{\prime}(a)$
$-\mathrm{a}^{2} \mathrm{f}^{\prime}$ (a)
$a f(a)-a^{2} f^{\prime}(a)$
$2 a f(a)-a^{2} f^{\prime}(a)$
Correct Option: , 4
Solution:
