List of top Mathematics Questions

If $y = \sin^{-1}x$, then prove that $(1 - x^{2}) \dfrac{d^{2}y}{dx^{2}} - x \dfrac{dy}{dx} = 0$.
If a die is thrown three times, then find the probability of getting at least one appearing number odd.
Differentiate $y = (\cos x)^{\tan x} + x^{x}$.
Find the interval in which the function \[ f(x) = 4x^3 - 6x^2 - 72x + 30 \] is (i) increasing and (ii) decreasing.
If $A = \begin{bmatrix} 2 & 3 \\ 1 & -4 \end{bmatrix}$ and $B = \begin{bmatrix} 1 & -2 \\ -1 & 3 \end{bmatrix}$, then prove that $(AB)^{-1} = B^{-1}A^{-1}$.
Find the shortest distance between the lines \[ \vec{r} = \hat{i} + 2\hat{j} - 4\hat{k} + \lambda(2\hat{i} + 3\hat{j} + 6\hat{k}) \] \[ \vec{r} = 3\hat{i} + 3\hat{j} - 5\hat{k} + \mu(2\hat{i} + 3\hat{j} + 6\hat{k}) \]
Prove that the relation $R = \{(a,b) \in \mathbb{Z} \times \mathbb{Z} \;|\; (a-b)$ is divisible by $2\}$ is an equivalence relation.
Solve the differential equation $(\tan^{-1}y - x)dy = (1+y^{2})dx$.
Find the equation of tangent at $t = \dfrac{\pi}{2}$ on the curve $x = a \sin^{3}t$, $y = b \cos^{3}t$.
One die is thrown two times. If the sum of the appeared numbers on their faces is 6, find the conditional probability of appearing number 4 at least one time in that.
Prove that \[ \begin{vmatrix} a+b+2c & a & b \\ c & b+c+2a & b \\ c & a & c+a+2b \end{vmatrix} = 2(a+b+c)^3 \]
Solve the inequality $3x + 4y \leq 12$, $4x + 3y \leq 12$, $x \geq 0$, $y \geq 0$ by graphical method.
If $A$ and $B$ are two non-singular square matrices of order $n$, then prove that \[ (AB)^{-1} = B^{-1}A^{-1} \]
Find the vector equation of the line $\dfrac{x+3}{2} = \dfrac{y-5}{4} = \dfrac{z+6}{2}$.
If $y = A\cos\theta + B\sin\theta$, then prove that $\dfrac{d^{2}y}{d\theta^{2}} = -y$.
Solve the differential equation $\log\left(\dfrac{dy}{dx}\right) = 3x + 4y$.
If the vectors $2\hat{i} + \hat{j} - a\hat{k}$ and $\hat{i} + 4\hat{j} + \hat{k}$ are perpendicular, find the value of $a$.
If $\sin^{-1}\left(\dfrac{1}{2}\right) = \tan^{-1}x$, find the value of $x$.
If $A = \begin{bmatrix} 2 & 4 \\ 3 & 2 \end{bmatrix}$ and $B = \begin{bmatrix} 1 & 3 \\ -2 & 5 \end{bmatrix}$, then find the value of $(A + B)$ and $(A - B)$.
The modulus function $f: \mathbb{R} \to \mathbb{R}^{+}$ given by $f(x) = |x|$ will be:
Evaluate: $\int x^{2}\sin(x^{3})\,dx$
Solve $\dfrac{dy}{dx} = \dfrac{x + e^x}{y}$.
The slope of the normal to the curve $y = 2x^{2} + 3\sin x$ at $x = 0$ will be:
The value of $\int_{1}^{\sqrt{3}} \dfrac{dx}{1+x^{2}}$ will be:
If $A = \begin{bmatrix} 0 & 1 \\ 1 & 0 \end{bmatrix}$ and $B = \begin{bmatrix} 1 & 0 \\ 0 & -1 \end{bmatrix}$, then $BA$ will be: