Jensen's Inequality
My favourite Olympiad Inequality | IMO 1995 Problem 2 Solution
One of the coolest functional equations I have seen!
Jensen's Inequality : Data Science Basics
Cauchy Schwarz Inequality | Applications to Problems, and When Equality Occurs
Proof of the AM-GM Inequality
a very interesting differential equation
The Tangent Trick for Olympiad Inequalities
a nice but little tricky inequality (math olympiad problem)
The intuition behind Jensen's Inequality
An Interesting Inequality
Weak Spots of Functional Equations | International Mathematical Olympiad 2011 Shortlist A3