A limit with a nice trick

A seemingly difficult limit, with an elementary trick. Can you figure it…

An International Mathematical Olympiad Inequality

IMO, notoriously the most difficult math competition…

A Fibonacci Sum.

The Fibonacci sequence is arguably one of the most known sequences in the world, as well as most studied. To the unfamiliar, it…

Can you find the area of the square inscribed in the hexagon?

A Sum from the Oxford Math Entrance Exam.

Have you ever thought of studying at Oxford? Maybe when you were still a highschooler…

A difficult but satisfying sum.

This sum from Putnam definitely isn’t easy, but the solution is…

A quick extreme value problem from Putnam

This problem is quite a quick one, but it is still a Putnam problem nevertheless. Any…

Problem from Putnam 2023

A Putnam problem from December 2023, can you figure it out?

An integral limit from Putnam.

Putnam. A tough mathematical competition for the best of the best pursuing their undergraduate degree…

An infinite hyperbolic product.

A neat trick often used in competitions; this time in the hyperbolic…