The value of $\displaystyle \lim_{n\to\infty}\sum_{k=1}^{n}\frac{n^{3}}{(n^{2}+k^{2})(n^{2}+3k^{2})}$ is:

1

Let $g:\mathbb{R}\to\mathbb{R}$ be a non-constant twice-differentiable function such that $g'\!\left(\tfrac12\right)=g'…

Topic: JEE Main 2024 (30 January Morning Shift)

1

Let $\vec a=a_1\hat i+a_2\hat j+a_3\hat k$ and $\vec b=b_1\hat i+b_2\hat j+b_3\hat k$ be two vectors such that $|\vec a…

Topic: JEE Main 2024 (30 January Morning Shift)

2

If the circles $(x+1)^2+(y+2)^2=r^2$ and $x^2+y^2-4x-4y+4=0$ intersect at exactly two distinct points, then:

Topic: JEE Main 2024 (30 January Morning Shift)

3

The maximum area of a triangle whose one vertex is at $(0,0)$ and the other two vertices lie on the curve $y=-2x^{2}+54…

Topic: JEE Main 2024 (30 January Morning Shift)

4

If \[ f(x)= \begin{vmatrix} 2\cos^{4}x & 2\sin^{4}x & 3+\sin^{2}2x\\ 3+2\cos^{4}x & 2\sin^{4}x & \sin^{2}2x\\ 2\cos^{4}…

Topic: JEE Main 2024 (30 January Morning Shift)

5

Let $(\alpha,\beta,\gamma)$ be the foot of the perpendicular from the point $(1,2,3)$ on the line \[ \frac{x+3}{5}=\fra…

Topic: JEE Main 2024 (30 January Morning Shift)

6

A line passing through the point \(A(9,0)\) makes an angle of \(30^\circ\) with the positive direction of the \(x\)-axi…

Topic: JEE Main 2024 (30 January Morning Shift)

7

Consider the system of linear equations $x + y + z = 4\mu,\quad x + 2y + 2\lambda z = 10\mu,\quad x + 3y + 4\lambda^2 z…

Topic: JEE Main 2024 (30 January Morning Shift)

8

Let $f:[-\tfrac{\pi}{2}, \tfrac{\pi}{2}] \to \mathbb{R}$ be a differentiable function such that $f(0)=\tfrac{1}{2}$. If…

Topic: JEE Main 2024 (30 January Morning Shift)

9

Let M denote the median of the following frequency distributionThen 20M is equal to :

Topic: JEE Main 2024 (30 January Morning Shift)

10

If the length of the minor axis of an ellipse is equal to half of the distance between the foci, then the eccentricity …

Topic: JEE Main 2024 (30 January Morning Shift)