Aryabhata
Reputation
416/400 score
 Jan 8 answered 2N digit number with exactly N ones and N zeros. Prove there exists a number divisible by N Jan 6 answered Closed form for a formula with a summation over $i\binom{n-i}{k-1}$, and combinatorial proof? Jan 3 answered Finding a value from 5 systems of equations of 5 variables(CHMMC 2014) Jan 3 answered Encode order of playing cards (data compression) Jan 2 answered Find this limit: $\lim_{n \to \infty}{(e^{\frac{1}{n}} - \frac{2}{n})^n}$ Dec 19 answered Integer part of a sum (floor) Dec 15 answered recursive sub-sequences of sequence , one is increasing and one is decreasing to same limit -> the sequence converge? Dec 15 answered A finite sum over $\pm 1$ vectors Nov 24 answered Irrational number inequality : $1+\frac{1}{\sqrt{2}}+\frac{1}{\sqrt{3}}>\sqrt{3}$ Aug 5 answered Truncated alternating binomial sum Jul 24 answered Polynomial representation Jul 23 answered Prove that an expression is zero for all sets of distinct $a_1, \dotsc, a_n\in\mathbb{C}$ Jul 19 answered Functions with different codomain the same according to my book? Jul 19 answered Proving that one of $a(1-b), b(1-c), c(1-a) \le \frac{1}{4}$ Jul 19 answered Difficult Integral Involving the $\ln$ function Jul 18 answered how to solve these equation? Jul 18 answered Bounds on a recursively defined sequence Jul 17 answered $k$-th number in $N \times M$ Table Jul 17 answered Sum of $k$-combination with repetitions Jul 8 answered Fibonacci Numbers Proof