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Anvit
  • Member for 7 years, 2 months
  • Last seen this week
  • India
9 votes
3 answers
519 views

Calculating a limit with trigonometric and quadratic function

7 votes
10 answers
1k views

Binomial summation $\sum\binom nkk^2$

7 votes
3 answers
2k views

Number of solutions to $1/x+1/y=1/1995$ in $\mathbb N^2$ [duplicate]

5 votes
1 answer
2k views

Multiplying congruences.

5 votes
3 answers
611 views

Integral part of sum of huge powers

5 votes
2 answers
73 views

Find positive $K$ such that $\int_0^\infty\left(\frac{1}{\sqrt{2x^2+1}}-\frac{K}{x+1}\right)dx$ converges

5 votes
1 answer
258 views

Minimum number of lattice points required so that there exists three points whose mean is also a lattice point

4 votes
1 answer
119 views

Prove that $\lim_{x\to\infty}\sum_{n=1}^{\infty}\frac x{n^2+x^2}$ exists and is positive

4 votes
1 answer
134 views

Given $G,H_1,H_2$ finite abelian groups and $G\times H_1 \cong G\times H_2$ then $H_1 \cong H_2$ [duplicate]

4 votes
1 answer
55 views

Infinite product with non homogenous recurrence relation [duplicate]

4 votes
2 answers
113 views

Is $\int_{-2}^3\frac{1}{x^3}dx=\frac5{72}$ or not defined?

4 votes
2 answers
92 views

Every prime number has multiple of form $100\dots01$

4 votes
5 answers
99 views

Calculate $\sum\limits_{k=0}^{20}(-1)^k\binom{k+2}2$ without calculating each term separately

4 votes
0 answers
433 views

Draw a perpendicular to diameter with only a straight edge

4 votes
1 answer
156 views

Finding minimum value of $\sum a_ib_i$

3 votes
4 answers
519 views

Proving $f'(0)=0$ if $\lim_{x\to0}f(x)/x^2$ exists and is finite

3 votes
3 answers
147 views

Proving there exists $k$ such that $p(n)p(n+1)=p(k)$

3 votes
5 answers
140 views

Proving $k^k>(k+1)^{k-1}$ [duplicate]

3 votes
4 answers
81 views

Prove $n$ is prime. (Fermat's little theorem probably)

3 votes
1 answer
126 views

Computing Minima for degree 8 polynomial [duplicate]

3 votes
2 answers
73 views

Ignoring $\frac1n$ in Riemann Sum

3 votes
3 answers
170 views

Trigonometric limit mistake

3 votes
2 answers
60 views

Mistake in converting Riemann Sum

3 votes
1 answer
105 views

possibly found a "counterexample" to a multilinear algebra problem

3 votes
0 answers
43 views

Non tangent through conic passes through two points

3 votes
1 answer
122 views

Trying to understand a solution to Project Euler #2

3 votes
1 answer
180 views

$y$ is a transient state then $\rho_{xy} \le \rho_{yy}$

2 votes
1 answer
265 views

General Case of Weyl's Equidistribution Theorem

2 votes
1 answer
41 views

Avg Area of triangle

2 votes
1 answer
122 views

Number of Unique Necklaces upto Rotation AND Reflection

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