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Mathematics
List of top Mathematics Questions
If an event has more than one sample point, then it is called a/an______.
Mathematics
Probability
If
$b^2 - 4ac = 0$
,
$a > 0$
, then the domain of the function
$y = log(ax^3 + (a + b)x^2 + (b + c)x + c)$
is
Mathematics
Relations and functions
If $?
Mathematics
Inverse Trigonometric Functions
If an angle
$\theta$
is divided into 2 parts A and B such that
$A - B = k$
and
$A + B = \theta$
and tan
$A : tan \,B = k :\, 1$
, then the value of sin k is :
Mathematics
Trigonometric Functions
If Amp
$( \frac {z-1} {z+1})= \frac {\pi} {3}$
, then
$z$
represents a point on
Mathematics
Complex Numbers and Quadratic Equations
If
$aN = {ax : x \in N}$
and
$bN \cap cN = dN$
, where
$b,\, c \in N$
are relatively prime, then
Mathematics
Sets
If
$\alpha , \beta $
are complementary angles, then
$\cos^2 \, \alpha +\cos^2 \,\beta $
is equal to
Mathematics
Trigonometric Functions
If all permutations of the letters of the word are arranged in the order as in a dictionary, what is the
$49^{th}$
word?
Mathematics
permutations and combinations
If
$\alpha \,,\beta,\,\gamma\,$
are the angles which a half ray makes with the positive directions of the axes, then
$\sin^2\alpha \,,\sin^2\beta,\,\sin^2\gamma\,$
is equal to
Mathematics
introduction to three dimensional geometry
If
$\alpha$
and
$\beta$
are the roots of the equation
$x^{2} + 2x + 4 = 0$
, then
$\frac{1}{\alpha^{3}}+\frac{1}{\beta^{3}}$
is equal to
Mathematics
Complex Numbers and Quadratic Equations
If
$AB = A$
and
$BA = B$
, then
$B^2$
is equal to
Mathematics
Matrices
If
$ABCDEF$
is a regular hexagon, then
$\overrightarrow{AD} + \overrightarrow{EB} + \overrightarrow{FC}$
is equal to
Mathematics
Vector Algebra
If
$ABCD$
is a cyclic quadrilateral then
$\cos(180? +A)+ \cos(180? - B) + \cos(180? - C) - \sin(90? - D) =$
Mathematics
Trigonometric Functions
If
$a^x = b^y = c^z$
and
$a, b, c $
are in G.P. then
$ x, y, z $
are in
Mathematics
Sequence and series
If
$A = \{ x : x^2 - 3x + 2 = 0 \}$
, and R is a universal relation on A, then R is
Mathematics
Relations and functions
If
$A = \{(x, y) : x^2 + y^2 = 25\}$
and
$B = \{(x, y) : x^2 + 16y^2 = 144\}$
then
$A \cap B$
contains
Mathematics
Sets
If a variable point P on an ellipse of eccentricity e is joined to the foci
$S_1$
and
$S_2$
then the incentre of the triangle
$PS_1S_2$
lies on
Mathematics
Conic sections
If
$A^T, B^T$
are transpose matrices of the square matrices A, B respectively, then
$(AB)^T$
is equal to
Mathematics
Matrices
If a relation
$R$
on the set
$\{1$
,
$2$
,
$3\}$
be defined by
$R = \{(1$
,
$2)\}$
, then
$R$
is
Mathematics
Relations and functions
If a line makes angles 60?, 45?, 45? and
$\theta$
with the four diagonals of a cube then
$sin^2 \, \theta = $
Mathematics
Three Dimensional Geometry
If a letter is chosen at random from the letter of English alphabet, then the probability that it is a letter of the word ??ELHI?
Mathematics
Probability
If a line makes an angle a with the positive direction of x-axis, then the slope of the line is given by :
Mathematics
Straight lines
If
$A$
is the void set
$\phi$
, then
$P\left(A\right)$
has just one element
$\phi$
i.e.
$P[\phi] = \left\{\phi\right\}$
. So number of elements of
$P\left[P\left(P\left(\phi\right)\right)\right]$
is
Mathematics
Sets
If A is symmetric as well as skew-symmetric matrix, then A is
Mathematics
Matrices
If A is a square matrix, then
$AA^T$
is a
Mathematics
Matrices
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