Easy
Find the derivative of $f(x) = 3$ at $x = 0$ and at $x = 3$.
- A$0$
- B$1$
- C$3$
- D$x$
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DifficultMHT CET 2026
View SolutionIf $f(x)$ has a derivative at $x = a,$ then $\mathop {\lim }\limits_{x \to a} \frac{xf(a) - af(x)}{x - a}$ is equal to
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