Let two fair six-faced dice $A$ and $B$ be thrown simultaneously.
If $E_{1}$ is the event that die $A$ shows up four,
$E_{2}$ is the event that die $B$ shows up two,
and $E_{3}$ is the event that the sum of numbers on both dice is odd,
then which of the following statements is NOT true?
If a curve $y = f(x)$ passes through the point $(1,-1)$ and satisfies the differential equation
$ y(1+xy),dx = x,dy $,
then $ f\left(-\dfrac{1}{2}\right) $ is equal to:
A wire of length $2$ units is cut into two parts which are bent respectively to form a square of side $= x$ units and a circle of radius $= r$ units.
If the sum of the areas of the square and the circle so formed is minimum, then:
The eccentricity of the hyperbola whose length of the latus rectum is equal to $8$ and the length of its conjugate axis is equal to half of the distance between its foci, is:
If one of the diameters of the circle, given by the equation,
$ x^{2} + y^{2} - 4x + 6y - 12 = 0 $,
is a chord of a circle $S$, whose centre is at $(-3, 2)$, then the radius of $S$ is :
Two sides of a rhombus are along the lines, $x - y + 1 = 0$ and $7x - y - 5 = 0$.
If its diagonals intersect at $(-1, -2)$, then which one of the following is a vertex of this rhombus?
If all the words (with or without meaning) having five letters, formed using the letters of the word SMALL and arranged as in a dictionary, then the position of the word SMALL is :
If the four-letter words (need not be meaningful) are to be formed using the letters from the word “MEDITERRANEAN” such that the first letter is $R$ and the fourth letter is $E$, then the total number of all such words is:
The number of distinct real roots of the equation
$ \begin{vmatrix}
\cos x & \sin x & \sin x \\
\sin x & \cos x & \sin x \\
\sin x & \sin x & \cos x
\end{vmatrix} = 0 $
in the interval $ \left[ -\frac{\pi}{4}, \frac{\pi}{4} \right] $ is:
The point represented by $2 + i$ in the Argand plane moves $1$ unit eastwards, then $2$ units northwards and finally from there $2\sqrt{2}$ units in the south-westwards direction. Then its new position in the Argand plane is at the point represented by:
For $x \in \mathbb{R}, x \ne 0$, let $f_{0}(x) = \dfrac{1}{1 - x}$ and $f_{n+1}(x) = f_{0}(f_{n}(x)),; n = 0,1,2,\ldots$ Then the value of $f_{100}(3) + f_{1}\left(\dfrac{2}{3}\right) + f_{2}\left(\dfrac{3}{2}\right)$ is equal to:
Let $a$ and $b$ respectively be the semitransverse and semi-conjugate axes of a hyperbola whose eccentricity satisfies the equation $9e^{2} - 18e + 5 = 0$. If $S(5,0)$ is a focus and $5x = 9$ is the corresponding directrix of this hyperbola, then $a^{2} - b^{2}$ is equal to :
In a triangle $ABC$, right angled at the vertex $A$, if the position vectors of $A,B$ and $C$ are respectively
$3\hat{i} + \hat{j} - \hat{k}$, $-\hat{i} + 3\hat{j} + p\hat{k}$ and $5\hat{i} + q\hat{j} - 4\hat{k}$,
then the point $(p,q)$ lies on a line:
If $A$ and $B$ are any two events such that $P(A) = \dfrac{2}{5}$ and $P(A \cap B) = \dfrac{3}{20}$, then the conditional probability
$P\big(A \mid (A' \cup B')\big)$, where $A'$ denotes the complement of $A$, is equal to:
The shortest distance between the lines
$\dfrac{x}{2} = \dfrac{y}{2} = \dfrac{z}{1}$
and
$\dfrac{x + 2}{-1} = \dfrac{y - 4}{8} = \dfrac{z - 5}{4}$
lies in the interval:
The point $(2,1)$ is translated parallel to the line $L : x - y = 4$ by $2\sqrt{3}$ units. If the new point $Q$ lies in the third quadrant, then the equation of the line passing through $Q$ and perpendicular to $L$ is:
If a variable line drawn through the intersection of the lines
$\dfrac{x}{3} + \dfrac{y}{4} = 1$ and $\dfrac{x}{4} + \dfrac{y}{3} = 1$
meets the coordinate axes at $A$ and $B$ $(A \ne B)$, then the locus of the midpoint of $AB$ is:
If $f(x)$ is a differentiable function in the interval $(0,\infty)$ such that $f(1) = 1$ and
$\displaystyle \lim_{t \to x} \frac{t^{2}f(x) - x^{2}f(t)}{t - x} = 1$, for each $x > 0$, then $f\left(\dfrac{3}{2}\right)$ is equal to:
If
$2\displaystyle\int_{0}^{1} \tan^{-1} x , dx = \displaystyle\int_{0}^{1} \cot^{-1} (1 - x + x^{2}) , dx,$
then
$\displaystyle\int_{0}^{1} \tan^{-1} (1 - x + x^{2}) , dx$ is equal to :
If
$\displaystyle \int \frac{dx}{\cos^{3}x\sqrt{2\sin 2x}} = (\tan x)^{A} + C(\tan x)^{B} + k,$
where $k$ is a constant of integration, then $A + B + C$ equals :
Let $a_{1}, a_{2}, a_{3}, \ldots, a_{n}, \ldots$ be in A.P.
If $a_{3} + a_{7} + a_{11} + a_{15} = 72$, then the sum of its first $17$ terms is equal to:
If the coefficients of $x^{-2}$ and $x^{-4}$ in the expansion of
$\left(x^{\tfrac13} + \dfrac{1}{2x^{\tfrac13}}\right)^{18},\ (x>0)$
are $m$ and $n$ respectively, then $\dfrac{m}{n}$ is equal to:
Let $A$ be a $3 \times 3$ matrix such that $A^{2} - 5A + 7I = 0$.
\textbf{Statement I:}
$A^{-1} = \dfrac{1}{7}(5I - A)$.
\textbf{Statement II:}
The polynomial $A^{3} - 2A^{2} - 3A + I$ can be reduced to $5(A - 4I)$.
Then:
Let $P = \{\theta : \sin\theta - \cos\theta = \sqrt{2}\cos\theta\}$
and $Q = \{\theta : \sin\theta + \cos\theta = \sqrt{2}\sin\theta\}$ be two sets. Then
For $x \in \mathbb{R},\ x \ne 0$, if $y(x)$ is a differentiable function such that
$x \int_{1}^{x} y(t)\,dt = (x+1) \int_{1}^{x} t\,y(t)\,dt,$
then $y(x)$ equals: (where $C$ is a constant.)
The mean of $5$ observations is $5$ and their variance is $124$.
If three of the observations are $1, 2$ and $6$, then the mean deviation from the mean of the data is:
Let $\triangle ABC$ be a triangle whose circumcentre is at $P$.
If the position vectors of $A, B, C$ and $P$ are $\vec a, \vec b, \vec c$ and $\dfrac{\vec a + \vec b + \vec c}{4}$ respectively,
then the position vector of the orthocentre of this triangle is:
ABC is a triangle in a plane with vertices
$A(2,3,5)$, $B(-1,3,2)$ and $C(\lambda,5,\mu)$.
If the median through $A$ is equally inclined to the coordinate axes,
then the value of $(\lambda^3 + \mu^3 + 5)$ is:
A hyperbola whose transverse axis is along the major axis of the conic
$\dfrac{x^2}{3} + \dfrac{y^2}{4} = 4$
and has vertices at the foci of this conic. If the eccentricity of the hyperbola is
$\dfrac{3}{2}$, then which of the following points does NOT lie on it?
A straight line through origin $O$ meets the lines $3y = 10 - 4x$ and $8x + 6y + 5 = 0$ at points $A$ and $B$ respectively.
Then $O$ divides the segment $AB$ in the ratio :
A ray of light is incident along a line which meets another line $7x - y + 1 = 0$ at the point $(0,1)$.
The ray is then reflected from this point along the line $y + 2x = 1$.
Then the equation of the line of incidence of the ray of light is:
Let $a,b\in\mathbb{R}$, $(a\neq 0)$. If the function $f$ defined as
$f(x)=
\begin{cases}
\dfrac{2x^{2}}{a}, & 0\le x<1 \\
a, & 1\le x<\sqrt{2} \\
\dfrac{2b^{2}-4b}{x^{3}}, & \sqrt{2}\le x<\infty
\end{cases}$
is continuous in the interval $[0,\infty)$, then an ordered pair $(a,b)$ is :