List of top Mathematics Questions

If the focii of $\frac {x^2}{16}+\frac{y^2}{4}=1 $ and $\frac {x^2}{a^2}-\frac{y^2}{3}=1 $ coincide, then value of $a$ is
Locus of a point which moves such that its distance from the $X-axis$ is twice its distance from the line $x - y = 0$ is
If $x = 2y + 3$ is a focal chord of the ellipse with eccentricity 3/4, then the lengths of the major and minor axes are
If $\cos^{-1} x +\cos^{-1} y +\cos^{-1}z = 3\pi $, then $xy + yz + zx$ is
$1 + 3 + 5 + 7 + ... + 29 + 30 +31 + 32 + ... + 60 =$
If $y =\frac{\sec x +\tan x}{\sec x - \tan x} $ , then $\frac{dy}{dx} = $
$\frac{1}{\sin\theta}- \frac{\sqrt{3}}{\cos \theta}=$
Let [ ?] denote the greatest integer function and $f (x) = [\tan^2 x]$. Then
The sum of all the positive divisors less than $250$ of the number $484$ is
$\lim_{x\to\infty} x^{\frac{1}{x}} = $
If $f\left(x\right) = \frac{x^{2} -1}{x^{2} +1} ,x\in R$ then the minimum value of $f$ is
The area of the parallelogram with $\vec{a}$ and $\vec{b}$ as adjacent sides is $20\, s \,units$. Then the area of the parallelogram having $7\vec{a} + 5\vec{b}$ and $8\vec{a} + 11\vec{b}$ as adjacent sides is
If the area of a circle increases at a uniform rate, then its perimeter varies
The surface area of a ball is increasing at the rate of $2 \pi \, s cm/sec$. The rate at which the radius is increasing when the surface area is $16 \pi \, s cm$ is
Let $f (x)$ and $g(x)$ be differentiable functions on (0, 2] such that $f"(x) - g"(x) = 0, f'(1) = 2g'(1) = 4, f(2) = 3g(2) = 9.$ Then $f (x)- g(x)$ at $ x = 3/2$ is
$\begin{vmatrix}a&b&c&d\\ -a&b&c&d\\ -a&-b&c&d\\ -a&-b&-c&d\end{vmatrix} = $
If $A = \begin{bmatrix}3&2\\ 4&5\end{bmatrix} $ and $AC = \begin{bmatrix}19&24\\ 37&46\end{bmatrix}$ then $C= $
$\int \frac{e^{x} \left(1 +\sin x\right)}{1+\cos x}dx= $
If the eccentricity of a hyperbola is 5/3, then the eccentricity of its conjugate is
The length of the subtangent to the curv $x^2y^2 = a^4$ at $(-a, a)$ is
The point of contact of the tangent $x + 2y + 2 = 0$ with the parabola $x^2 = 16y$ is
$\sin10^{\circ} +\sin 20^{\circ }+\sin 30^{\circ }+...+\sin360^{\circ } =$
The equation of the line passing through $ (0,0) $ and intersection of $ 3x-4y=2 $ and $ x+2y=-4 $ is
If $A = \begin{bmatrix}3&x-1\\ 2x+3&x+2\end{bmatrix}$ is a symmetric matrix, then the value of $x$ is
The coordinates of a moving point $p$ are $(2t^2 + 4, 4t + 6)$. Then its locus will be a