I will help teach in a introductory class in mathematics for engineers in applied math at the University. Anyone have any good and cool favorite questions or know where I can find some? Anything is welcome
For the moment there is some questions like
write: $1 + 2 + 3 + ... + 100$ as a sum
show that $XY-YX = I$ has no solution for square matrices.
- $p | (n^2 - n)$ ($p$ is prime).