Tony Ma's user avatar
Tony Ma's user avatar
Tony Ma's user avatar
Tony Ma
  • Member for 4 years, 8 months
  • Last seen more than a month ago
  • Hong Kong, China
12 votes

Underlying Reason For Taking Log Base 10

5 votes
Accepted

Prove that $\lim_{h\to 0} \frac{g(a+h)-2g(a)+g(a-h)}{h^2} = g''(a)$

3 votes
Accepted

If a ≡ b (mod n) and m|n, then a ≡ b (mod m)

3 votes
Accepted

Why Taylor series for $\sin$ about 0 does not converges uniformly to $\sin$ on $\mathbb{R}$?

2 votes

Congruence equal to zero in chinese remainder theorem

2 votes

Inequalities: Do these properties hold?

2 votes
Accepted

Why does the absolute value of a power series converge to the same limit as the power series?

1 vote
Accepted

Integration by parts question using ln

1 vote

Prove that a number composed of only $2n$ "1"s, minus another number composed of only $n$ "2"s, is a perfect square.

1 vote

Can we calculate $\lim_{x \to 0+}{x^{(x^x)}}$ without using extended real numbers?

1 vote

Dog bone-shaped curve: $|x|^x=|y|^y$

1 vote

Prove the tangent line exists

1 vote

Its all about functions

1 vote

Show that $\log (xy) \leq \log\Big(\frac{1}{2}\Big)$

1 vote

Finding $\lim\limits_{n \to \infty} \sqrt[n^2]{a_n}$ given that $\lim\limits_{n \to \infty} \frac{a_n a_{n+2}}{(a_{n+1})^2}=L^2$

0 votes

Matrix of Matrices

0 votes

How to prove $\lim _{n \to \infty} S_n=\infty$ for partial sums of a divergent series?

0 votes

Limit as x approaches infinity of $x^{-x}$?

0 votes

What is $e^{\int{\frac{1}{x}dx}}$?

0 votes

Limit of $\left(1+\frac1x\right)^x$

0 votes

proof of ratio test

0 votes
Accepted

some confusion about infimum and supremum concepts>

-1 votes

Proving that $\frac{f(b)-f(a)}{b-a}+ \left(\frac{g(b)-g(a)}{b-a}\right)^2\le \max_{t\in [a,b]}\{f'(t)+(g'(t))^2\}$