Mathxyz 
upsc.xyz
Ask us anything  hi@upsc.xyz
Toggle navigation
MathXyz
Email or Username
Password
Remember
Login
Register

I forgot my password
Questions
Hot!
Unanswered
Tags
Ask a Question
Hot questions
0
votes
0
answers
Central force and orbits
asked
Jun 28, 2018
by
ARCH
(
120
points)
mechanics
0
votes
2
answers
Find the equation of the tangent plane at the point $(1,1,1)$ to the conicoid $3x^2y^2=2z$.
asked
Nov 11, 2017
by
randomisation
(
1,920
points)
pyqs
2017
analyticalgeometry
conicoid
0
votes
1
answer
Show that the plane $2x2y+z+12=0$ touches the sphere $x^2+y^2+z^22x4y+2z+3=0$. Find the point of contact.
asked
Nov 11, 2017
by
randomisation
(
1,920
points)
pyqs
2017
analyticalgeometry
spheres
0
votes
1
answer
Reduce the equation to standard form and determine the nature of the conicoid: x2+y2+z2yzzxxy3x6y9z+21=0.
asked
Jan 8, 2018
by
big boss
(
190
points)
pyqs
2017
3d
analyticalgeometry
0
votes
1
answer
A fixed wire is in the shape of the cardioid $r = a(1+cos\theta)$, the initial line being the downward vertical.
asked
Dec 23, 2017
by
randomisation
(
1,920
points)
pyqs
2017
cse
statics
0
votes
1
answer
Integrate the function $f(x,y) = xy(x^2+y^2)$ over the domain $R : { 3 <= x^2y^2<3, 1 <=xy <=4 }$
asked
Jan 5, 2018
by
big boss
(
190
points)
calculus
pyqs
2017
integration
0
votes
1
answer
Find the initial basic feasible solution of the following transportation problem using Vogel's approximation method.
asked
Dec 21, 2017
by
randomisation
(
1,920
points)
pyqs
2017
cse
linearprogramming
transportationproblem
0
votes
1
answer
Find a basis and dimension of the image of $A$ and those of the kernel $A$.
asked
Dec 22, 2017
by
randomisation
(
1,920
points)
pyqs
2017
cse
linearalgebra
matrices
0
votes
1
answer
Reduce the equation to $xyp^2  (x^2+y^21)p+xy = 0$ Clairaut's form.
asked
Nov 12, 2017
by
randomisation
(
1,920
points)
pyqs
2017
differentialequations
clairaut
0
votes
1
answer
Solve the following linear programming problem by simplex method: Maximize $z= 3x_1+5x_2+4x_3$
asked
Dec 21, 2017
by
randomisation
(
1,920
points)
2017
pyqs
cse
linearprogramming
simplex
0
votes
1
answer
Solve by simplex method the following LPP: Minimize $Z = x_1  3x_2 + 2x_3$
asked
Dec 21, 2017
by
randomisation
(
1,920
points)
2017
pyqs
ifos
linearprogramming
simplex
0
votes
1
answer
Assign the programs to the programmers in such a way that total computer time is least.
asked
Dec 21, 2017
by
randomisation
(
1,920
points)
pyqs
2017
linearprogramming
ifos
0
votes
1
answer
Find the possible dimensions of subspace $U \cap W$
asked
Dec 22, 2017
by
randomisation
(
1,920
points)
pyqs
2017
cse
linearalgebra
vectorspace
0
votes
0
answers
Prove that distinct nonzero eigenvectors of a matrix are linearly independent.
asked
Dec 22, 2017
by
randomisation
(
1,920
points)
pyqs
2017
cse
linearalgebra
matrices
0
votes
0
answers
Consider the following system of equations in $x, y, z$ :
asked
Dec 22, 2017
by
randomisation
(
1,920
points)
pyqs
2017
cse
linearalgebra
0
votes
1
answer
Find the locus of the centre of the sphere which passes through the origin $O$ and $A,B,C$
asked
Nov 11, 2017
by
randomisation
(
1,920
points)
pyqs
2017
analyticalgeometry
spheres
0
votes
1
answer
Using graphical method, find the maximum value of $2x+y$ subject to given constraints.
asked
Nov 25, 2017
by
randomisation
(
1,920
points)
pyqs
2017
linearprogramming
0
votes
0
answers
Find the supremum and the infimum of $\frac{x}{\sin x}$ on the interval $\left (0, \frac{\pi}{2} \right ]$.
asked
Nov 25, 2017
by
randomisation
(
1,920
points)
pyqs
2017
modernalgebra
0
votes
0
answers
Determine all entire functions $f(z)$ such that $0$ is a removable singularity of $f\left( \frac{1}{z} \right)$.
asked
Nov 25, 2017
by
randomisation
(
1,920
points)
pyqs
2017
complexanalysis
0
votes
1
answer
Show that similar matrices have same characteristic polynomial.
asked
Nov 11, 2017
by
randomisation
(
1,920
points)
pyqs
2017
matrices
Page:
1
2
next »
Welcome to MathXyz, where you can ask questions and receive answers from other members of the community. Please strictly ask questions from UPSC Mathematics syllabus.
37
questions
27
answers
2
comments
34
users