Let $f:[-\tfrac{\pi}{2}, \tfrac{\pi}{2}] \to \mathbb{R}$ be a differentiable function such that $f(0)=\tfrac{1}{2}$. If $\displaystyle \lim_{x \to 0} \frac{x \int_0^x f(t),dt}{e^{x^2} - 1} = \alpha$, then $8\alpha^2$ is equal to:
Previous 10 Questions — JEE Main 2024 (30 January Morning Shift)
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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)
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)
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)
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)
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)
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)
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)
The value of $\displaystyle \lim_{n\to\infty}\sum_{k=1}^{n}\frac{n^{3}}{(n^{2}+k^{2})(n^{2}+3k^{2})}$ is:
Topic: JEE Main 2024 (30 January Morning Shift)
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)
Next 10 Questions — JEE Main 2024 (30 January Morning Shift)
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Let M denote the median of the following frequency distributionThen 20M is equal to :
Topic: JEE Main 2024 (30 January Morning Shift)
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)
Two integers $x$ and $y$ are chosen with replacement from the set ${0,1,2,3,\ldots,10}$. Then the probability that $|x-…
Topic: JEE Main 2024 (30 January Morning Shift)
Let $A(2,3,5)$ and $C(-3,4,-2)$ be opposite vertices of a parallelogram $ABCD$. If the diagonal $\overrightarrow{BD}= \…
Topic: JEE Main 2024 (30 January Morning Shift)
Let $y=y(x)$ be the solution of the differential equation
$\sec x,dy+{2(1-x)\tan x+x(2-x)},dx=0$ with $y(0)=2$. Then $y…
Topic: JEE Main 2024 (30 January Morning Shift)
If $z=x+iy$ with $xy\ne0$ satisfies $z^{2}+i\overline{z}=0$, then $|z^{2}|$ equals:
Topic: JEE Main 2024 (30 January Morning Shift)
If $2\sin^3x+\sin2x\cos x+4\sin x-4=0$ has exactly $3$ solutions in the interval $\left[0,\dfrac{n\pi}{2}\right],,n\in\…
Topic: JEE Main 2024 (30 January Morning Shift)
If the domain of the function $f(x)=\cos^{-1}!\left(\dfrac{2-|x|}{4}\right)+{\log_e(3-x)}^{-1}$ is $[-\alpha,\beta)-{\g…
Topic: JEE Main 2024 (30 January Morning Shift)
Let $S_n$ denote the sum of first $n$ terms of an arithmetic progression. If $S_{20}=790$ and $S_{10}=145$, then $S_{15…
Topic: JEE Main 2024 (30 January Morning Shift)
The area (in square units) of the region bounded by the parabola $y^{2}=4(x-2)$ and the line $y=2x-8$ is:
Topic: JEE Main 2024 (30 January Morning Shift)