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Hot questions in Engineering Mathematics
0
votes
0
answers
1
GATE201323
Square roots of $i$,where $i=\sqrt{1}$, are $i,i$ $\cos(\frac{\pi }{4} )+i\sin(\frac{\pi }{4})+\cos(\frac{3\pi }{4})+i\sin(\frac{3\pi }{4})$ $\cos(\frac{\pi }{4} )+i\sin(\frac{3\pi }{4})+\cos(\frac{3\pi }{4})+i\sin(\frac{\pi }{4})$ $\cos(\frac{3\pi }{4} )+i\sin(\frac{3\pi }{4})+\cos(\frac{3\pi }{4})+i\sin(\frac{3\pi }{4})$
asked
Feb 12, 2017
in
Complex Variables
by
piyag476
(
1.5k
points)
gate2013ee
complexnumber
trigonometry
0
votes
0
answers
2
GATE2014128
The line integral of function $F = yzi$, in the counterclockwise direction, along the circle $x^2+y^2 = 1$ at $z = 1$ is $2\pi$ $\pi$ $\pi$ $2\pi$
asked
Feb 12, 2017
in
Calculus
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
lineintegral
circleequation
quadraticfunction
0
votes
0
answers
3
GATE201413
The solution for the differential equation $\dfrac{d^2x}{dt^2}=9x,$ with initial conditions $x(0)=1$ and $\dfrac{dx}{dt}\mid_{t=0}=1$ , is $t^2+t+1$ $\sin3t+\frac{1}{3}\cos3t+\frac{2}{3}$ $\frac{1}{3}\sin3t+\cos3t$ $\cos3t+t$
asked
Feb 12, 2017
in
Differential Equations
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
boundarylimits
differential
equation
0
votes
0
answers
4
GATE201513
If the sum of the diagonal elements of a $2 \times 2$ matrix is $6$, then the maximum possible value of determinant of the matrix is ________
asked
Feb 12, 2017
in
Calculus
by
makhdoom ghaya
(
9.2k
points)
gate2015ee1
diagonalelements
determinant
matrix
numericalanswers
0
votes
0
answers
5
GATE20143GA8
The Gross Domestic Product $(GDP)$ in Rupees grew at $7$% during $2012$$2013$.For international comparison, the $GDP$ is compared in $US$ Dollars $(USD)$ after conversion based on the market exchange rate. During the period $2012$$2013$ ... $USD$ during the period $2012$$2013$ increased by $5 $% decreased by $13$% decreased by $20$% decreased by $11$%
asked
Feb 12, 2017
in
Engineering Mathematics
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
grossdomesticproduct
marketexchangerate
0
votes
0
answers
6
GATE20141GA4
If $(z+1/z)^2 = 98,$ compute $(z^2+1/z^2).$
asked
Feb 12, 2017
in
Linear Algebra
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
complexnumber
numericalanswers
0
votes
0
answers
7
GATE2015226
The volume enclosed by the surface $f(x, y) = e^{x}$ over the triangle bounded by the lines $x = y; x = 0; y = 1$ in the $xy$ plane is ________.
asked
Feb 12, 2017
in
Calculus
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
lineequations
3dsystem
numericalanswers
0
votes
0
answers
8
GATE201522
We have a set of $3$ linear equations in $3$ unknowns. $'X \equiv Y'$ means $X$ and $Y$ are equivalent statements and $'X \not\equiv Y'$ means $X$ and $Y$ are not equivalent statements. P: There is a unique solution. Q: The equations are linearly independent. R: All ... $P \equiv Q \not\equiv R \equiv S$ $P\not\equiv Q \not\equiv R \not\equiv S$
asked
Feb 12, 2017
in
Linear Algebra
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
linearequations
eigenvalues
0
votes
0
answers
9
GATE2015127
A solution of the ordinary differential equation $\frac{d^{2}y}{dt^{2}}+5\frac{dy}{dt}+6y=0$ is such that $y(0) = 2$ and $y(1)= \frac{13e}{e^{3}}$. The value of $\frac{dy}{dt}(0)$ is _______.
asked
Feb 12, 2017
in
Differential Equations
by
makhdoom ghaya
(
9.2k
points)
gate2015ee1
ordinarydifferentialequation
numericalanswers
0
votes
0
answers
10
GATE20143GA5
The table below has questionwise data on the performance of students in an examination. The marks for each question are also listed. There is no negative or partial marking in the examination. ... $1.34$ $1.74$ $3.02$ $3.91$
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
mean
stats
0
votes
0
answers
11
GATE20142GA9
The ratio of male to female students in a college for five years is plotted in the following line graph. If the number of female students doubled in $2009$, by what percent did the number of male students increase in $2009?$
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.2k
points)
gate2014ee2
linegraph
stats
numericalanswers
0
votes
0
answers
12
GATE201411
Given a system of equations: $x+2y+2z=b_1$ $5x+y+3z=b_2$ Which of the following is true regarding its solutions The system has a unique solution for any given $b_1$ and $b_2$ The system will have infinitely many solutions for any given $b_1$ and $b_2$ Whether ... a solution exists depends on the given $b_1$ and $b_2$ The system would have no solution for any values of $b_1$ and $b_2$
asked
Feb 12, 2017
in
Linear Algebra
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
linearequation
matrix
systemoflinearequations
0
votes
0
answers
13
GATE20151GA8
The piechart below has the breakup of the number of students from different departments in an engineering college for the year $2012$. The proportion of male to female students in each department is $5:4$. There are $40$ males in ... What is the difference between the numbers of female students in the Civil department and the female students in the Mechanical department?
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.2k
points)
gate2015ee1
charts
stats
numericalanswers
0
votes
0
answers
14
GATE201336
$\displaystyle{}\oint \frac{z^24}{z^2+4}\: dz$ evaluated anticlockwise around the circle $\mid zi \mid=2$ , where $i=\sqrt{1}$, is $4\pi$ $0$ $2+\pi$ $2+2i$
asked
Feb 12, 2017
in
Differential Equations
by
piyag476
(
1.5k
points)
gate2013ee
integral
equations
0
votes
0
answers
15
GATE201346
A function $y=5x^2+10x$ is defined over an open interval $x$ = $(1, 2)$ . At least at one point in this interval, $\dfrac{\mathrm{dy} }{\mathrm{d} x}$ is exactly $20$ $25$ $30$ $35$
asked
Feb 12, 2017
in
Calculus
by
piyag476
(
1.5k
points)
gate2013ee
calculus
directionalderivatives
gaussstheorem
0
votes
0
answers
16
GATE201351
The state variable formulation of a system is given as $\begin{bmatrix} x^\cdot_1 \\ x^\cdot_2 \end{bmatrix}=\begin{bmatrix} 2 & 0\\ 0 & 1 \end{bmatrix}\begin{bmatrix} x_1\\ x_2 \end{bmatrix}+\begin{bmatrix} 1\\ 1 \end{bmatrix}u$ , $x_1(0)=0$ , $x_2(0)=0$ ... $1\frac{1}{2}e^{2t}\frac{1}{2}e^{t}$ $e^{2t}e^{t}$ $1e^{t}$
asked
Feb 12, 2017
in
Linear Algebra
by
piyag476
(
1.5k
points)
gate2013ee
linearalgebra
stateequations
systemoflinearequations
0
votes
0
answers
17
GATE20152GA8
If $p, q, r, s$ are distinct integers such that: $f(p, q, r, s) = \max (p, q, r, s)$ $g(p, q, r, s) = \min (p, q, r, s)$ $h(p, q, r, s)$ = remainder of $(p \times q) / (r \times s)$ if $(p \times q) > (r \times s)$ or remainder of ... $f(p, q)$. What is the value of $fg (h (2, 5, 7, 3), 4, 6, 8)$ ?
asked
Feb 12, 2017
in
Linear Algebra
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
remainder
operator
num
numericalanswers
0
votes
0
answers
18
GATE201511
A random variable $X$ has probability density function $f(x)$ as given below: $ f(x)= \begin{cases} a+bx & \text{ for } 0 < x < 1 \\ 0 & \text{otherwise} \end{cases}$ If the expected value $E[x] = 2/3$, then $Pr[x < 0.5]$ is __________.
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.2k
points)
gate2015ee1
randomvariable
probabilitydensityfunction
numericalanswers
0
votes
0
answers
19
GATE20143GA9
The ratio of male to female students in a college for five years is plotted in the following line graph If the number of female students in $2011$ and $2012$ is equal, what is the ratio of male students in $2012$ to male students in $2011$? $1:1$ $2:1$ $1.5:1$ $2.5:1$
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
graph
stats
0
votes
0
answers
20
GATE201412
Let $f(x)=xe^{x}$ . The maximum value of the function in the interval $(0,\infty)$ is $e^{1}$ $e$ $1e^{1}$ $1+e^{1}$
asked
Feb 12, 2017
in
Differential Equations
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
interval
functions
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