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Recent questions tagged isi2019mma
0
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2
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1
ISI2019MMA20
Suppose that the number plate of a vehicle contains two vowels followed by four digits. However, to avoid confusion, the letter $‘O’$ and the digit $‘0’$ are not used in the same number plate. How many such number plates can be formed? $164025$ $190951$ $194976$ $219049$
asked
May 7
in
Combinatory
by
Sayan Bose
Loyal
(
7.2k
points)

360
views
isi2019mma
engineeringmathematics
discretemathematics
permutationandcombination
+1
vote
1
answer
2
ISI2019MMA18
For the differential equation $\frac{dy}{dx} + xe^{y}+2x=0$ It is given that $y=0$ when $x=0$. When $x=1$, $\:y$ is given by $\text{ln} \bigg(\frac{3}{2e} – \frac{1}{2} \bigg)$ $\text{ln} \bigg(\frac{3e}{2} – \frac{1}{4} \bigg)$ $\text{ln} \bigg(\frac{3}{e} – \frac{1}{2} \bigg)$ $\text{ln} \bigg(\frac{3}{2e} – \frac{1}{4} \bigg)$
asked
May 7
in
Others
by
Sayan Bose
Loyal
(
7.2k
points)

3.6k
views
isi2019mma
nongate
engineeringmathematics
calculus
differentiableequation
+1
vote
2
answers
3
ISI2019MMA17
The reflection of the point $(1,2)$ with respect to the line $x + 2y =15$ is $(3,6)$ $(6,3)$ $(5,10)$ $(10,5)$
asked
May 7
in
Geometry
by
Sayan Bose
Loyal
(
7.2k
points)

139
views
isi2019mma
nongate
geometry
+1
vote
1
answer
4
ISI2019MMA16
If $S$ and $S’$ are the foci of the ellipse $3x^2 + 4y^2=12$ and $P$ is a point on the ellipse, then the perimeter of the triangle $PSS’$ is $4$ $6$ $8$ dependent on the coordinates of $P$
asked
May 7
in
Geometry
by
Sayan Bose
Loyal
(
7.2k
points)

81
views
isi2019mma
nongate
geometry
+1
vote
1
answer
5
ISI2019MMA14
If the system of equations $\begin{array} \\ax +y+z= 0 \\ x+by +z = 0 \\ x+y + cz = 0 \end{array}$ with $a,b,c \neq 1$ has a non trivial solutions, the value of $\frac{1}{1a} + \frac{1}{1b} + \frac{1}{1c}$ is $1$ $1$ $3$ $3$
asked
May 7
in
Linear Algebra
by
Sayan Bose
Loyal
(
7.2k
points)

149
views
isi2019mma
linearalgebra
systemofequations
0
votes
2
answers
6
ISI2019MMA12
Given a positive integer $m$, we define $f(m)$ as the highest power of $2$ that divides $m$. If $n$ is a prime number greater than $3$, then $f(n^31) = f(n1)$ $f(n^31) = f(n1) +1$ $f(n^31) = 2f(n1)$ None of the above is necessarily true
asked
May 6
in
Numerical Ability
by
Sayan Bose
Loyal
(
7.2k
points)

297
views
isi2019mma
generalaptitude
numericalability
0
votes
1
answer
7
ISI2019MMA8
For $0 \leq x \leq 2 \pi$, the number of solutions of the equation $\sin^2x + 2 \cos^2x + \sin x \cos x = 0$ is $1$ $2$ $3$ $4$
asked
May 6
in
Others
by
Sayan Bose
Loyal
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7.2k
points)

106
views
isi2019mma
nongate
trignometry
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