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Mathematics
List of top Mathematics Questions
If the foci and vertices of an ellipse are respectively $(\pm 2,0)$ and $(\pm 3,0)$ then its eccentricity is
KEAM - 2026
KEAM
Mathematics
Ellipse
The equation of a hyperbola is $9x^{2}-16y^{2}=144$. If $A$ and $S$ are, respectively, the focus and the vertex of one section of the hyperbola, then the length of $AS$ is
KEAM - 2026
KEAM
Mathematics
Hyperbola
If the focus and vertex of a parabola are at a distance of 3 units and 6 units, respectively, from the origin on the positive x-axis, then the equation of the parabola is
KEAM - 2026
KEAM
Mathematics
Parabola
The perpendicular distance between the lines $3x+4y-6=0$ and $6x+8y+18=0$ is
KEAM - 2026
KEAM
Mathematics
Distance of a Point From a Line
The x-intercept and y-intercept of a line are three times and four times of the x-intercept and y-intercept of the line $3x+2y=6$, respectively. Then the equation of the line is
KEAM - 2026
KEAM
Mathematics
Straight lines
The value of $\tan^{-1}\left(\frac{\cos x-\sqrt{3}\sin x}{\sqrt{3}\cos x+\sin x}\right)$ , where $0<x<\frac{\pi}{2}$ is
KEAM - 2026
KEAM
Mathematics
Inverse Trigonometric Functions
If the foot of the perpendicular drawn from the origin to the line $y=mx+c$ is $(1,1)$ then the value of $m$ and $c$ are, respectively,
KEAM - 2026
KEAM
Mathematics
Straight lines
The value of $\cos^{-1}\left(\cos\frac{2\pi}{3}\right)+\sin^{-1}\left(\sin\frac{2\pi}{3}\right)$ is equal to
KEAM - 2026
KEAM
Mathematics
Inverse Trigonometric Functions
The value of $\tan^{2}(\sec^{-1}(3))$ is
KEAM - 2026
KEAM
Mathematics
Inverse Trigonometric Functions
Let $f(x)=(8\sin x+15\cos x+3)^{2}-15$, $x\in\mathbb{R}.$ Then the maximum value of $f$ is
KEAM - 2026
KEAM
Mathematics
Trigonometry
The value of $\frac{\tan 75^{\circ}+\tan 15^{\circ}}{\tan 75^{\circ}-\tan 15^{\circ}}$ is equal to
KEAM - 2026
KEAM
Mathematics
Trigonometry
The value of $\frac{\sqrt{3}(\sin 40^{\circ}+\sin 20^{\circ})}{\cos 40^{\circ}+\cos 20^{\circ}}$ is
KEAM - 2026
KEAM
Mathematics
Trigonometry
If $\sec^{2}\theta+\tan^{2}\theta=7, 0<\theta<\frac{\pi}{2}$, then $\tan 2\theta$ is equal to
KEAM - 2026
KEAM
Mathematics
Trigonometry
If $|2x-3|<5, x\in\mathbb{R}$, then $x$ lies in the interval
KEAM - 2026
KEAM
Mathematics
linear inequalities
The value of $4 \cos 36^{\circ}\cos 72^{\circ}$ is equal to
KEAM - 2026
KEAM
Mathematics
Trigonometry
The value of $\begin{vmatrix} \sin 30^{\circ} & \cos 30^{\circ} & \sin(30^{\circ}+75^{\circ}) \\ \sin 45^{\circ} & \cos 45^{\circ} & \sin(45^{\circ}+75^{\circ}) \\ \sin 60^{\circ} & \cos 60^{\circ} & \sin(60^{\circ}+75^{\circ}) \end{vmatrix}$ is equal to
KEAM - 2026
KEAM
Mathematics
Determinants
If $\frac{21x-6}{4}-9\le0$ and $\frac{x-1}{3}+1\ge0, x\in\mathbb{R}$ then $x$ lies in the interval
KEAM - 2026
KEAM
Mathematics
linear inequalities
If the coefficient of $y^{3}$ in the binomial expansion of $\left(2\alpha-\frac{y}{2}\right)^{8}$ is -7, then the value of $\alpha$ is equal to
KEAM - 2026
KEAM
Mathematics
Binomial theorem
Let $(1+ax)(1-2x)^{3}=\sum_{n=0}^{4}a_{n}x^{n}$, where $a$ is a constant. If $a_{2}=0$, then the value of $a$ is
KEAM - 2026
KEAM
Mathematics
Binomial theorem
If $A$ is a square matrix of order $n$ such that $|\text{adj}(\text{adj} A)|=|A|^{25}$, then $n$ is equal to
KEAM - 2026
KEAM
Mathematics
Determinants
If $A$ is a non-singular matrix of order $n$ satisfying the matrix equation $I+A+A^{2}+A^{3}+...+A^{10}=0$, where $I$ and $0$ are, respectively, unit and null matrices of order $n$, then $A^{10}=$
KEAM - 2026
KEAM
Mathematics
Matrix
If $a, x, y, b$ are in G.P., then $(x+y)^{2}=$
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KEAM
Mathematics
Geometric Progression
The number of 3-digit even numbers that can be formed with the digits 0, 1, 2, 3, 4, 5, 6 are
KEAM - 2026
KEAM
Mathematics
permutations and combinations
If the $3^{\text{rd}}$, $7^{\text{th}}$, $11^{\text{th}}$ terms of a geometric progression are $a$, $b$, $c$ respectively, then $(ac)^{4} =$
KEAM - 2026
KEAM
Mathematics
Geometric Progression
A cricket team of 11 players from 16 players is to be selected. If three particular players are always included in the team, then the number of ways of selecting the team is
KEAM - 2026
KEAM
Mathematics
Combinations
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