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List of top Mathematics Questions asked in KCET
If
\(p(\frac{1}{q}+\frac{1}{r}),q(\frac{1}{r}+\frac{1}{p}),r(\frac{1}{p}+\frac{1}{q})\)
are in A.P., then p, q, r
KCET - 2023
KCET
Mathematics
Arithmetic Progression
n
th
term of the series
\(1+\frac{3}{7}+\frac{5}{7^2}+\frac{1}{7^2}+...\)
is
KCET - 2023
KCET
Mathematics
Sequence and series
If
\(\lim\limits_{x \rightarrow 0} \frac{\sin(2+x)-\sin(2-x)}{x}\)
= A cos B, then the values of A and B respectively are
KCET - 2023
KCET
Mathematics
limits of trigonometric functions
The modulus of the complex number
\(\frac{(1+i)^2(1+3i)}{(2-6i)(2-2i)}\)
is
KCET - 2023
KCET
Mathematics
complex numbers
The value of
\(\begin{vmatrix} \sin^2 14 \degree & \sin^2 66\degree & \tan 135\degree \\ \sin^2 66\degree & \tan 135\degree & \sin^2 14 \degree \\ \tan 135\degree & \sin^2 14 \degree & \sin^2 66\degree \end{vmatrix}\)
KCET - 2023
KCET
Mathematics
Trigonometric Identities
\(\int\sqrt{\cosec x-\sin x}\ dx=\)
KCET - 2023
KCET
Mathematics
Definite Integral
An enemy fighter jet is flying along the curve given by y = x
2
+ 2. A soldier is placed at (3, 2) wants to shoot down the jet when it is nearest to him. Then the nearest distance is
KCET - 2023
KCET
Mathematics
Differential Calculus
If n is even and the middle term in the expansion of
\((x^2+\frac{1}{x})^n\)
is 924 x
6
, then n is equal to
KCET - 2023
KCET
Mathematics
Binomial theorem
If
\(\vec{a}+2\vec{b}+3\vec{c}=\vec{0}\)
and
\((\vec{a}\times\vec{b})+(\vec{b}\times\vec{c})+(\vec{c}\times\vec{a})=\lambda(\vec{b}\times\vec{c})\)
then the value of λ is equal to
KCET - 2023
KCET
Mathematics
Vector Algebra
A particle moves along the curve
\(\frac{x^2}{16}+\frac{y^2}{4}=1\)
. When the rate of change of abscissa is 4 times that of its ordinate, then the quadrant in which the particle lies is
KCET - 2023
KCET
Mathematics
Conic sections
The distance ‘s’ in meters travelled by a particle in ‘t’ seconds is given by s =
\(\frac{2t^3}{3}-18t+\frac{5}{3}.\)
The acceleration when the particle comes to rest is
KCET - 2023
KCET
Mathematics
Differential Calculus
\(\int\limits_{2}^{8}\frac{5^{\sqrt{10-x}}}{5^{\sqrt{x}}+5^{\sqrt{10-x}}}\ dx=\)
KCET - 2023
KCET
Mathematics
Definite Integral
Let f(x) = sin 2x + cos 2x and g(x)=x
2
-1, then g(f(x)) is invertible in the domain
KCET - 2023
KCET
Mathematics
composite of functions
Given that a,b and x are real numbers and a< b, x < 0 then
KCET - 2023
KCET
Mathematics
Real Numbers
If A and B are events such that P(A)=
\(\frac{1}{4}\)
, P(A/B)=
\(\frac{1}{2}\)
and P(B/A)=
\(\frac{2}{3}\)
then P(B) is
KCET - 2023
KCET
Mathematics
Conditional Probability
\(\int\limits^{\pi}_{0}\frac{x\tan x}{\sec x.\cosec x}\ dx=\)
KCET - 2023
KCET
Mathematics
Trigonometric Identities
Ten chairs are numbered as 1 to 10. Three women and two men wish to occupy one chair each. First the women choose the chairs marked 1 to 6, then the men choose the chairs from the remaining. The number of possible ways is
KCET - 2023
KCET
Mathematics
permutations and combinations
If a curve passes through the point (1, 1) at any point (x, y) on the curve, the product of the slope of its tangent and x co-ordinate of the point is equal to the y co-ordinate of the point, then the curve also passes through the point
KCET - 2023
KCET
Mathematics
Coordinate Geometry
The point of intersection of the line x + 1 =
\(\frac{y+3}{3}=\frac{-z+2}{2}\)
with the plane 3x + 4y + 5z = 10 is
KCET - 2023
KCET
Mathematics
Three Dimensional Geometry
If
\(u=\sin^{-1}(\frac{2x}{1+x^2})\)
and
\(v=\tan^{-1}(\frac{2x}{1-x^2})\)
then
\(\frac{du}{dv}\)
is
KCET - 2023
KCET
Mathematics
Derivatives
f : R → R and g : [0, ∞) → R are defined by f(x) = x
2
and g(x)=
\(\sqrt{x}\)
. Which one of the following is not true ?
KCET - 2023
KCET
Mathematics
Functions
The shaded region in the figure given is the solution of which of the inequations?
KCET - 2023
KCET
Mathematics
linear inequalities
A circular plate of radius 5 cm is heated. Due to expansion, its radius increases at the rate of 0.05 cm/sec. The rate at which its area is increasing when the radius is 5.2 cm is
KCET - 2023
KCET
Mathematics
Derivatives
A bag contains 2n + 1 coins. It is known that n of these coins have head on both sides whereas the other n + 1 coins are fair. One coin is selected at random and tossed. If the probability that toss results in heads is
\(\frac{31}{42}\)
, then the value of n is
KCET - 2023
KCET
Mathematics
Conditional Probability
The component of
\(\hat{i}\)
in the direction of the vector
\(\hat{i}+\hat{j}+2\hat{k}\)
is
KCET - 2023
KCET
Mathematics
Vectors
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