What is the most difficult math?

What is the most difficult math? 1. Algebra: Algebra is a branch of mathematics that studies symbols and the rules that control how they are used. In elementary algebra, those symbols (today written as Latin and Greek letters) denote quantities with no fixed values, sometimes referred to as variables.

1. Algebra: Algebra is a branch of mathematics that studies symbols and the rules that control how they are used. In elementary algebra, those symbols (today written as Latin and Greek letters) denote quantities with no fixed values, sometimes referred to as variables.