Question

1. Written by hand: Give an example of a mathematical formula or fact that you can recall purely from memory, and provide your best brief explanation for how you have remembered it.

2. Typed: Choose your favorite mathematical symbol that DOES NOT appear on a standard keyboard and give a brief explanation of your choice.

Answer 1

1)

This is square formula which we used in algebra.

To remember this formula we distribute , because power is 2 so we multiply parentheses two times. After multiplying we get required formula.

2)The symbol is theta  .

This symbol does not appear on standard keyboard and used in mathematics and physics also.

Theta is Greek alphabet.

This symbol used for angle, like in trigonometry we write  .