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Some Math Student's user avatar
Some Math Student's user avatar
Some Math Student's user avatar
Some Math Student
  • Member for 9 years, 7 months
  • Last seen more than 3 years ago
11 votes

Is $[a, a)$ equal to $\{a\}$ or $\varnothing$?

8 votes
Accepted

$1/\infty$ is zero or infinitesimal?

8 votes

highest product of the numbers that sum to $100$

5 votes

Find the mistake in this proof.

4 votes
Accepted

How to show logistic function is monotonic increasing?

4 votes

How can I prove that only there continuous odd prime are $3,5,7$?

3 votes
Accepted

Prove that partial differential equation has no weak solution

3 votes

Find the relationship between $n$ and $m$ (both natural numbers) such that $m^{1/n}$ is a rational number.

3 votes

Convergent or Divergent Sequence?

3 votes
Accepted

If $a_n\sim b_n$ and $b_n\to 0$, then $a_n\to 0$?

2 votes

How to prove without L'Hopital rule that $\lim_{n\to\infty}{\frac{2^n}{n}}=\infty$

2 votes

how to find epsilon-delta definition of a limit

2 votes

Prove the inequality $x_1^{y_1}+x_2^{y_2}+\cdots+x_n^{y_n} \geq x_1^{y_{\pi(1)}}+x_2^{y_{\pi(2)}}+\cdots+x_n^{y_{\pi(n)}}.$

2 votes

Finding the inverse of $f(x) = x\sqrt{2+x^2}$

2 votes

Congruence class $[a]$ modulo $m$, $\gcd(x, m) = \gcd(a, m)$

2 votes
Accepted

How to make a sum vanish?

2 votes

Beautiful little number theory prob

1 vote

Greatest Common Divisor of $2$ Numbers in The Integers

1 vote

A extended euclid algorithm related problem

1 vote

(Inequality) $p \cdot (z-x) \leq \frac{a}{R} | z- x| \Leftrightarrow |p|\leq \frac{a}{R}$

1 vote

Continuity and Differentiation on open interval

1 vote

Increasing function with dense image continuous?

1 vote
Accepted

Radius of convergence: $\sum_{k=1}^\infty \frac{x^{2k-1}}{2k-1}$

1 vote
Accepted

How to find this maximum?

1 vote

totally bounded question

1 vote
Accepted

For continuous $f:[0, \infty) \to \mathbb{R}$ with finite $a = \lim_{x \to \infty} f(x)$ the IVT applies

1 vote

Equivalence Class Question

1 vote

Which statements hold true for modular arithmetic?

1 vote

Showing $x^2 = 1\pmod{p^{\alpha}}$ has only two solutions?

1 vote

Logical problem in analysis