10 Answered Questions

[SOLVED] Expected Number of Coin Tosses to Get Five Consecutive Heads

2 Answered Questions

6 Answered Questions

5 Answered Questions

[SOLVED] Polynomial $P(a)=b,P(b)=c,P(c)=a$

2 Answered Questions

[SOLVED] Compositeness of $n^4+4^n$

1 Answered Questions

[SOLVED] Proving the Apollonian circle formula

8 Answered Questions

[SOLVED] Find $f(x)$ such that $f(f(x)) = x^2 - 2$

2 Answered Questions

[SOLVED] Inequality $\sum\limits_{cyc}\frac{a^3}{13a^2+5b^2}\geq\frac{a+b+c}{18}$

1 Answered Questions

4 Answered Questions

[SOLVED] Reference for combinatorial game theory.

2 Answered Questions

4 Answered Questions

[SOLVED] Integral Contest

2 Answered Questions

[SOLVED] Denesting radicals like $\sqrt[3]{\sqrt[3]{2} - 1}$

4 Answered Questions

[SOLVED] A goat tied to a corner of a rectangle

3 Answered Questions

[SOLVED] Preparing for Mathematics Olympiad

6 Answered Questions

[SOLVED] $g(x+y)+g(x)g(y)=g(xy)+g(x)+g(y)$ for all $x,y$.

3 Answered Questions

[SOLVED] Prove $a^ab^bc^c\ge (abc)^{\frac{a+b+c}3}$ for positive numbers.

3 Answered Questions

6 Answered Questions

[SOLVED] Studying for the Putnam Exam