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
Answers by randomisation
User randomisation
Wall
Recent activity
All questions
All answers
User randomisation
Wall
Recent activity
All questions
All answers
0
votes
Reduce the equation to standard form and determine the nature of the conicoid: x2+y2+z2yzzxxy3x6y9z+21=0.
answered
Jan 8, 2018
pyqs
2017
3d
analyticalgeometry
+1
vote
Integrate the function $f(x,y) = xy(x^2+y^2)$ over the domain $R : { 3 <= x^2y^2<3, 1 <=xy <=4 }$
answered
Jan 5, 2018
calculus
pyqs
2017
integration
0
votes
A fixed wire is in the shape of the cardioid $r = a(1+cos\theta)$, the initial line being the downward vertical.
answered
Dec 23, 2017
pyqs
2017
cse
statics
0
votes
Find the initial basic feasible solution of the following transportation problem using Vogel's approximation method.
answered
Dec 23, 2017
pyqs
2017
cse
linearprogramming
transportationproblem
0
votes
Find the possible dimensions of subspace $U \cap W$
answered
Dec 22, 2017
pyqs
2017
cse
linearalgebra
vectorspace
0
votes
Assign the programs to the programmers in such a way that total computer time is least.
answered
Dec 21, 2017
pyqs
2017
linearprogramming
ifos
0
votes
Solve by simplex method the following LPP: Minimize $Z = x_1  3x_2 + 2x_3$
answered
Dec 21, 2017
2017
pyqs
ifos
linearprogramming
simplex
0
votes
Solve the following linear programming problem by simplex method: Maximize $z= 3x_1+5x_2+4x_3$
answered
Dec 21, 2017
2017
pyqs
cse
linearprogramming
simplex
0
votes
Using graphical method, find the maximum value of $2x+y$ subject to given constraints.
answered
Dec 21, 2017
pyqs
2017
linearprogramming
0
votes
How much bacteria after 4 weeks if they double in 1 week?
answered
Nov 12, 2017
pyqs
2017
differentialequations
0
votes
Reduce the equation to $xyp^2  (x^2+y^21)p+xy = 0$ Clairaut's form.
answered
Nov 12, 2017
pyqs
2017
differentialequations
clairaut
0
votes
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.
answered
Nov 11, 2017
pyqs
2017
analyticalgeometry
spheres
0
votes
Find the locus of the centre of the sphere which passes through the origin $O$ and $A,B,C$
answered
Nov 11, 2017
pyqs
2017
analyticalgeometry
spheres
0
votes
Find the shortest distance between the skew lines.
answered
Nov 11, 2017
pyqs
2017
analyticalgeometry
lines
0
votes
Find the equation of the tangent plane at the point $(1,1,1)$ to the conicoid $3x^2y^2=2z$.
answered
Nov 11, 2017
pyqs
2017
analyticalgeometry
conicoid
0
votes
Show that similar matrices have same characteristic polynomial.
answered
Nov 11, 2017
pyqs
2017
matrices
0
votes
Find a nonsingular matrix $P$ such that $P^{1}AP$ is a diagonal matrix for given A.
answered
Nov 11, 2017
pyqs
2017
matrices
0
votes
Convergence of $\prod_{n=0}^{\infty} \left ( 1 + \frac{1}{x^{2n}} \right )$
answered
Sep 9, 2017
convergence
pyqs
0
votes
Is $ v(x,y) = x^3  3xy^2 + 2y $ a harmonic function?
answered
Aug 26, 2017
pyqs
2016
complexanalysis
0
votes
Evaluate: $ I = \int_{0}^{1} \sqrt[3]{x log\left(\frac{1}{x}\right)} dx $
answered
Aug 21, 2017
pyqs
2016
calculus
integration
improperintegration
Page:
1
2
next »
37
questions
27
answers
2
comments
34
users