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List of top Mathematics Questions asked in KCET
The value of
\(\int\frac{xe^x dx}{(1+x)^2}\)
is equal to
KCET - 2021
KCET
Mathematics
Definite Integral
The value of
\(\int\frac{x^2dx}{\sqrt{x^6+a^6}}\)
is equal to
KCET - 2021
KCET
Mathematics
Definite Integral
\(\int\frac{x^3\sin(\tan^{-1}(x^4))}{1+x^8}dx\)
is equal to
KCET - 2021
KCET
Mathematics
Definite Integral
If y = (x - 1)
2
(x - 2)
3
(x - 3)
5
then
\(\frac{dy}{dx}\)
at x = 4 is equal to
KCET - 2021
KCET
Mathematics
Differential Calculus
The function f(x) = x
2
- 2x is strictly decreasing in the interval
KCET - 2021
KCET
Mathematics
Increasing and Decreasing Functions
If the parabola y = αx
2
- 6x + β passes through the point (0, 2) and has its tangent at x =
\(\frac{3}{2}\)
parellel to x axis, then
KCET - 2021
KCET
Mathematics
Parabola
A particle starts form rest and its angular displacement (in radians) is given by
\(\theta=\frac{t^2}{20}+\frac{t}{5}\)
. If the angular velocity at the end of t = 4 is k, then the value of 5k is
KCET - 2021
KCET
Mathematics
Differential Calculus
If the parametric equation of curve is given by x = cosθ + log tan
\(\frac{θ}{2}\)
and y = sinθ, then the points for which
\(\frac{dy}{dx}=0\)
are given by
KCET - 2021
KCET
Mathematics
Derivatives of Functions in Parametric Forms
Consider the following statements :
Statement 1 : If y = log
10
x + log
e
x then
\(\frac{dy}{dx}=\frac{\log_{10}e}{x}+\frac{1}{x}\)
Statement 2 :
\(\frac{d}{dx}(\log_{10}x)=\frac{\log x}{\log 10}\ \text{and}\ \frac{d}{dx}(\log_ex)=\frac{\log x}{\log e}\)
KCET - 2021
KCET
Mathematics
Derivatives
For constant a,
\(\frac{d}{dx}\)
(x
x
+ x
a
+ a
x
+ a
a
) is
KCET - 2021
KCET
Mathematics
Differential Calculus
If y = (cosx
2
)
2
, then
\(\frac{dy}{dx}\)
is equal to
KCET - 2021
KCET
Mathematics
Derivatives
At x = 1, the function f(x) =
\(\left\{ \begin{aligned} & x^3-1\ \ \ \ \ \ 1<x<\infin \\ & x-1\ \ \ \ \ -\infin<x≤1 \\ \end{aligned} \right.\)
is
KCET - 2021
KCET
Mathematics
Functions
If x
3
- 2x
2
- 9x + 18 = 0 and A =
\(\begin{vmatrix} 1 & 2 & 3 \\ 4 & x & 6 \\ 7 & 8 & 9 \\ \end{vmatrix}\)
then the maximum value of A is
KCET - 2021
KCET
Mathematics
Determinants
If f(x) =
\(\begin{vmatrix} cosx & 1 & 0 \\ 0 & 2cosx & 3 \\ 0 & 1 & 2cosx \\ \end{vmatrix}\)
then
\(\lim\limits_{x\rightarrow\pi} f(x)=\)
KCET - 2021
KCET
Mathematics
limits of trigonometric functions
If A and B are invertible matrices then which of the following is not correct ?
KCET - 2021
KCET
Mathematics
Invertible Matrices
If A and B are matrices of order 3 and |A| = 5, |B| = 3 then |3AB| is
KCET - 2021
KCET
Mathematics
Determinants
\(\tan^{-1}[\frac{1}{\sqrt3}\sin\frac{5\pi}{2}]\sin^{-1}[\cos(\sin^{-1}\frac{\sqrt3}{2})]=\)
KCET - 2021
KCET
Mathematics
Inverse Trigonometric Functions
Let M be 2 × 2 symmetric matrix with integer entries, then M is invertible if
KCET - 2021
KCET
Mathematics
Matrices
If
\(A=\begin{bmatrix} 1 & -2 & 1 \\ 2 & 1 & 3 \\ \end{bmatrix}\ B=\begin{bmatrix} 2 & 1 \\ 3 & 2 \\ 1 & 1 \\ \end{bmatrix}\)
then (AB)' is equal to
KCET - 2021
KCET
Mathematics
Matrices
\(\cos[\cot^{-1}(-\sqrt3)+\frac{\pi}{6}]=\)
KCET - 2021
KCET
Mathematics
Trigonometric Functions
Let A = { x : x ∈ R; x is not a positive integer } Define f : A → R as f(x) =
\(\frac{2x}{x-1}\)
, then f is
KCET - 2021
KCET
Mathematics
Domain of a Function
Domain of the function f(x) =
\(\frac{1}{\sqrt{[x]^2-[x]-6}}\)
where [x] is greatest integer ≤ x is
KCET - 2021
KCET
Mathematics
Domain of a Function
The function f(x) =
\(\sqrt3\)
sin2x - cos2x + 4 is one-one in the interval
KCET - 2021
KCET
Mathematics
Functions
f : R → R defined by f(x) =
\(\left\{ \begin{aligned} & 2x;x>3 \\ &x^2;1<x≤3\\ & 3x;x≤1 \end{aligned} \right.\)
then f(-2) + f(3) + f(4) is
KCET - 2021
KCET
Mathematics
Functions
If P(A) = 0.59, P(B) = 0.30 and P(A ∩ B) = 0.21 then P( A' ∩ B') =
KCET - 2021
KCET
Mathematics
Probability
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