List questions from parity | MathQa

How to prove $\frac xy + \frac yx \ge 2$

Published on 05 Jun 2025 - 19:44

Prove that sum $(\sqrt2+1)^n+(\sqrt2-1)^n$ is rational for even numbers

Published on 05 Jun 2025 - 19:51

Induction to prove parity

Published on 04 Jun 2025 - 4:55

8-puzzle which has the numbers in order but has gap in between

Published on 04 Jun 2025 - 4:55

decoding a block code in non systematic form

Published on 04 Jun 2025 - 4:55

Find all permutations such that $\sigma=a\tau a^{-1}$

Published on 04 Jun 2025 - 4:55

Determine the parity and the inverse for each of the following permutation of {1, 2, . . . , 9}:

Published on 04 Jun 2025 - 4:55

Even-odd multiplicative algebraic structure with idempotency?

Published on 04 Jun 2025 - 4:56

Prove that an odd integer is always of the form $2m+1$

Published on 04 Jun 2025 - 4:56

Regular grammar with parity

Published on 04 Jun 2025 - 4:56