List of top Mathematics Questions

If \[ f(x)=\int \frac{1}{x^{1/4}(1+x^{1/4})}dx,\quad f(0)=-6, \] then \(f(1)\) equals:

The number of relations on \(A=\{1,2,3\}\) containing at most 6 elements including (1,2), that are reflexive and transitive but not symmetric is:

If the system \[ 2x+\lambda y+3z=5,\quad 3x+2y-z=7,\quad 4x+5y+\mu z=9 \] has infinitely many solutions, then \(\lambda^2+\mu^2\) equals:

Let \( f: \mathbf{R} \rightarrow \mathbf{R} \) be a thrice differentiable odd function satisfying \( f'(x) \ge 0 \), \( f''(x)=f(x) \), \( f(0)=0 \), \( f'(0)=3 \). Then \( 9f(\ln 3) \) equals:

Let \(y=f(x)\) satisfy \[ \frac{dy}{dx}+\frac{xy}{x^2-1}=\frac{x^6+4x}{\sqrt{1-x^2}},\ -1<x<1 \] with \(f(0)=0\). If \[ 6\int_{-1/2}^{1/2} f(x)\,dx = 2\pi-\alpha, \] then \(\alpha^2\) equals:

If \[ y(x)=\det\begin{pmatrix} \sin x & \cos x & \sin x+\cos x+1\\ 27 & 28 & 27\\ 1 & 1 & 1 \end{pmatrix} \] for \(x\in\mathbb{R}\), then \(\frac{d^2y}{dx^2}+y\) equals:

Find the shortest distance between the skew lines \[ \vec r=(1,0,0)+\lambda(1,1,0) \] and \[ \vec r=(0,1,1)+\mu(0,1,1) \]

If \[ \sin^{-1}x+\cos^{-1}x=\theta \] find \(\theta\).

A bag contains 5 red balls, 4 blue balls and 3 green balls. Two balls are drawn at random without replacement. The probability that both balls are red is:

Find the equation of the tangent to \[ y=x^3-3x+1 \] at the point where \(x=2\).

If \[ \int \frac{2x+1}{x^2+x+1}\,dx \] is equal to:

If \[ z=\frac{1+i}{1-i}, \] then \(z^8\) equals:

The differential equation of the family of curves \[ y=ce^{2x} \] is:

The number of 5-digit numbers that can be formed using the digits \(1,2,3,4,5,6\) without repetition and divisible by \(5\) is:

If \[ \int_{0}^{1}(3x^2+2x+1)\,dx=k, \] then the value of \(k\) is:

If a random variable \(X\) has probability distribution \[ P(X=x)=kx, \] \[ x=1,2,3,4, \] then the value of \(k\) is:

Find the distance from the point \[ (1,1,1) \] to the plane \[ x+y+z=3. \]

Find \[ \frac{dy}{dx} \] if \[ y=\log(\sin x). \]

Find the rate of change of the area of a circle with respect to its radius \(r\) when \[ r=3\text{ cm}. \]

Find the value of \[ \cos\left(\sin^{-1}\left(\frac{1}{2}\right)\right). \]

If \[ P(A)=0.5, \qquad P(B)=0.3, \qquad P(A\cap B)=0.1, \] find \[ P(A|B). \]

Calculate \[ \int e^x\,dx. \]

Is \[ f(x)=x^2 \] continuous at \(x=0\)?

Find the order and degree of the differential equation: \[ \sqrt{1+\left(\frac{dy}{dx}\right)^2}=\frac{d^2y}{dx^2} \]

Minimize \[ Z=2x+3y \] subject to \[ x+y\ge5, \qquad x,y\ge0. \]