A Fun Twist on a Familiar Problem

My Favourite Golden Ratio Fact

The Quadratic Formula No One Taught You

Can You Solve Without Finding x & y?

A Short Number Theory Problem

Similar Triangles in the Complex Plane

Proving A Crazy GCD Identity

A Satisfying Number Theory Proof

Median of Medians Puzzle

A Unique Proof Without Induction

Solving a Matrix Equation

The Most Satisfying Proof: Product of 4 Consecutive Integers is not Square

Solving a Compound Inequality

Solve & Sketch the Region

Two Proofs of a Useful Inequality

A Quick Solution Using Complex Numbers

A Simple Sequence, with Fun Consequences

Equation of a Line in the Complex Plane

Why Your Ruler is Inefficient

Evaluating an Infinite Series

Find all Real Solutions

A Neat Application of Complex Numbers

Can You Solve This Inequality?

A Fun Definite Integral

A Satisfying Property of Diagonals

A Neat Product Inequality

How Many Ways Are There To Draw This Graph?

Factorisation using Matrices

A 3D Lattice Problem

Rationalising the Denominator with a Cube Root