x→alim9(k)−f(x)k9(x)−kf(x)=4 (By L'Hospital rule) x→alimk9′(x)−f′(x)9′(x)−f′(x)=4 or k=4
JEE Main 2003 — Mathematics Calculus
Let f(a)=g(a)=k and their nth derivatives fn(a),gn(a) exist and are not equal for some n. Further if x→alimg(x)−f(x)f(a)g(x)−f(a)−g(a)f(x)+f(a)=4 then the value of k is
Held on 30 Apr 2003 · Verified 6 Jul 2026.
0
4
2
1
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
Let $[\cdot]$ denote the greatest integer function. Then the value of $\displaystyle\int_0^3 \left(\dfrac{e^x + e^{-x}}{[x]!}\right) dx$ is :
The value of $\sum_{r=1}^{20}\left(\left|\sqrt{\pi\left(\int_{0}^{r} x|\sin \pi x| d x\right)}\right|\right)$ is $\_\_\_\_$
The value of ∫₀¹ x·eˣ dx is:
If the area of the region bounded by $16x^2 - 9y^2 = 144$ and $8x - 3y = 24$ is A, then $3(A + 6 \log_e(3))$ is equal to _______.
Let $f: \mathbb{R} \rightarrow \mathbb{R}$ be a differentiable function such that $f\left(\dfrac{x+y}{3}\right) = \dfrac{f(x) + f(y)}{3}$ for all $x, y \in \mathbb{R}$, and $f'(0) = 3$. Then the minimum value of the function $g(x) = 3 + e^x f(x)$, is:
Work through every JEE Main Calculus PYQ, year by year.