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Manjoy Das
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50 Answers

Votes Activity Newest
2
Length of the Polar Curve
Apr 29 '20 at 20:32
2
Show that the series of functions $\sum\limits_{n\geq 1} {x\over n(1+nx^2)} $ is uniformly convergent for all real $x$
Apr 8 '20 at 17:21
1
Verify that the vector field $\vec{V}(x,y,z)$ = $\frac{y\vec{i}-x\vec{j}}{x^2+y^2}$ is irrotational when $(x,y) \neq (0,0)$
Dec 30 '20 at 20:39
1
Show that $[2x]+[2y] \geq [x]+[y]+[x+y]$
Nov 4 '20 at 19:51
1
A false conjecture by Goldbach
Aug 3 '20 at 19:45
1
Find the area enclosed by the graphs of $y = -x^2 + 4x + 8$ and $y = x^2 - 2x$ from $x = -1$ to $x = 4$
May 8 '20 at 18:21
1
Outward unit normal vector of $z=0$
May 2 '20 at 22:45
1
Verify Stokes' Theorem for $v=zi+xj+yk$ over the hemispherical surface $x^2+y^2+z^2=1$ and $z \gt 0$.
Apr 27 '20 at 11:24
1
Verify Stokes' Theorem for $v=zi+xj+yk$ over the hemispherical surface $x^2+y^2+z^2=1$ and $z \gt 0$.
Apr 27 '20 at 9:37
1
Verifying Stoke's Theorem using path integration along a parametrized ellipse
Apr 26 '20 at 21:23
1
Prove that $2$ and $2i$ are irreducible in $R = \{a+ 2b i \mid a,\,b\in \mathbb{Z}\}$
Apr 23 '20 at 18:49
1
Rolles Theorem, IVT, Mean Value theorem
Apr 22 '20 at 16:42
1
Derivative of $U: \mathbb{R^2} \rightarrow \mathbb{R}$
Apr 20 '20 at 11:52
1
Prove that we an find a positive integer so that $1/2^n < \epsilon $
Apr 19 '20 at 8:19
1
Green theorem verifying problem
Apr 15 '20 at 11:30
0
Show that $(G,*)$ it is a group
Dec 30 '20 at 19:38
0
Show that the odd prime divisors of $n^2+n+1$ are of form $6k+1$ (exclude 3)
Dec 3 '20 at 14:52
0
How to solve the following system of differential equations?
Jun 12 '20 at 7:22
0
Solve the pde $z=pq$?
Jun 11 '20 at 18:10
0
Name of the phenomenon: square of previous number + odd number = square of the next number
May 17 '20 at 21:26
0
Showing $(2,x)$ is maximal in $\Bbb Z[x]$
May 9 '20 at 19:14
0
Is $\mathbb{Z}[x]$ a principal ideal domain?
May 9 '20 at 18:33
0
Use the Mean Value Theorem to prove that there exists a $c\in(0,1)$ such that $f(c) = f'(c)$
May 9 '20 at 8:08
0
Proving that $\mathbb{Z}[x]$ and $\mathbb{Q}[x]$ are not isomorphic.
May 5 '20 at 20:36
0
nth derivative of a symmetric function
May 2 '20 at 21:51
0
Prove that a mapping from C to M2(R) is injective and a homomorphismm
Apr 30 '20 at 8:49
0
What's wrong with my modular arithmetic?
Apr 29 '20 at 18:02
0
On which regions can Green's theorem NOT be applied?
Apr 26 '20 at 20:13
0
Rolles Theorem, IVT, Mean Value theorem
Apr 22 '20 at 17:18
0
Are two functions linearly dependent iff their Wronskian is $0$?
Apr 22 '20 at 10:16
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