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Mathematics
List of top Mathematics Questions
If
$k \le \sin^{-1} x + \cos^{-1} x + \tan^{-1 } x \le K$
, then
Mathematics
Inverse Trigonometric Functions
if
$\int\limits_{a}^{b} \frac{x^{n}}{x^{n} + \left(16 - x\right)^{n}} dx = 6$
, then
Mathematics
integral
If
$\int^{2}_{-3} f\left(x\right)dx = \frac{7}{3} $
and
$\int^{9}_{-3} f\left(x\right)dx = - \frac{5}{6} , $
then what is the value of
$\int^{9}_{2} f\left(x\right)dx $
?
Mathematics
integral
If
$ \int\frac{dx}{\left(x+2\right)\left(x^{2} +1\right)} = a log\left|1+x^{2}\right| +b tan^{-1} x +\frac{1}{5}log\left|x+2\right|+C$
, then
Mathematics
integral
If in a triangle ABC, tanA + tanB + tanC = 6 and tan A tan B = 2, then the triangle is
Mathematics
Trigonometric Identities
If in a moderately asymmetrical distribution, mode and mean of the data are 6
$\lambda$
. and 9
$\lambda$
. respectively, then median is
Mathematics
Statistics
If
$I_1=\int\limits_{e} ^{_e2}\frac{dx}{\log\,x}$
and
$I_2=\int\limits_{1} ^{2}\frac{e^x}{x}dx$
, then
Mathematics
integral
If H be the Harmonic mean between a and b, then the value of
$\frac{1}{H-a}+ \frac{1}{H-b}$
is
Mathematics
Sequence and series
If
$h\left(x\right)=\frac{2+x^{2}}{2-x^{2}}$
,
$h'\left(1\right)=$
Mathematics
limits and derivatives
If
$g(x) = 1 + \sqrt{x}$
and
$f [g (x)] = 3 + \sqrt{2} x + x $
, then f(x) =
Mathematics
Relations and functions
If
$g$
is the inverse function of
$f$
and
$f '(x) = sin\, x$
, then
$g '(x)$
is
Mathematics
Continuity and differentiability
If
$g_1, g_2$
are two geometric means and
$a_1$
is the arithmetic mean between two positive numbers, then the value of
$\frac{g_{1}^{2}}{g_{2}} + \frac{g_{2}^{2}}{g_{1}} $
is
Mathematics
Sequence and series
If for complex numbers
$(z_1$
and
$ z_2)$
arg
$(z_1 - z_2)$
= 0, then
$| z_1 - z_2|$
is equal to
Mathematics
Complex Numbers and Quadratic Equations
If
$f (x) = x^2 + 4x - 5$
and
$A = \begin{bmatrix}1&2\\ 4&-3\end{bmatrix} $
then f (A) is equal to
Mathematics
Matrices
If
$f(x) = cosx \cdot cos \,2x \cdot cos \,4x \cdot cos \,8x \cdot cos \,16x$
, then the value of
$f '\left(\frac{\pi}{4}\right)$
is
Mathematics
Continuity and differentiability
If
$f(x) = 2x + 1$
and
$g (x) = x^2 + 1$
then
$go(fof)(2) =$
Mathematics
Relations and functions
If f (x) = ax + b and g (x) = cx + d, then f {g (x)} = g {f (x)} is equivalent to
Mathematics
Relations and functions
If
$f : B \to A$
is defined by
$f \left(x\right) = \frac{3x+4}{5x-7}$
and
$g : A \to B$
is defined by
$g \left(x\right) = \frac{7x+4}{5x-3}$
, where
$A = R - \left\{\frac{3}{5}\right\}$
and
$B = R - \left\{\frac{7}{5}\right\}$
and
$I_{A}$
is an identity function on A and
$I_{B}$
is identity function on B, then
Mathematics
Relations and functions
If f : R
$\to$
R is defined by f(x) = 3x + |x| , then f(2x) - f (- x) - 6x =
Mathematics
Relations and functions
If
$f(x + 1) = x^2 - 3x + 2$
, then f (x) is equal to:
Mathematics
Relations and functions
If
$f(1)=1$
and
$f(n+1)=2f (n)+1$
if
$n \ge1$
, then
$f(n)$
is equal to
Mathematics
Relations and functions
If eleven members of a committee sit at a round table so that the President and Secretary always sit together, then the number of arrangements is
Mathematics
permutations and combinations
If
$f(0) = 0 = g(0) $
and
$f'(0) = 6 = g'(0)$
, then
$\lim_{x \to 0} \frac{f(x)}{g(x)}$
is given by
Mathematics
limits and derivatives
If every pair from among the equation
$x^2 + px + qr = 0$
,
$x^2 + qx + rp = 0$
and
$x^2 + rx + pq = 0$
has a common root, then the product of three common roots is.
Mathematics
Complex Numbers and Quadratic Equations
If eight persons are to address a meeting, then the number of ways in which a specified speaker is to speak before another specified speaker is
Mathematics
permutations and combinations
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