11:17

When Fermat met Mersenne... | Video 2 on φ(n) = φ(n+1) | number theory

08:16

A surprisingly simple integral ft. The gamma function! | definite integration

10:26

A problem for FLOOR GANG from SMO 2013 | Floor function

11:13

Starting out with an easy case | Video 1 on φ(n) =φ(n+1) | number theory

10:18

An introduction to Euler's totient function. | number theory

19:54

This gives a very important formula as the result. | functional equations

11:05

Think before you brute-force! | algebraic manipulation

31:18

A "closed form" for arctan(4) | complex analysis

05:28

A question that baffled instagram users! | integration quickies #2

04:50

Rationalization is useful! | integration quickies #1

16:53

Going overkill on a question from Turkish MO 2018 | Recursion

13:54

What looks like brute force, may just be elegant! | Algebruh

15:31

A functional analysis question from JEE mains 2022.

11:20

An unexpected application of recursion relations!

20:03

Functional analysis is actually useful!

08:26

A video response to @MichaelPennMath 's recent video.

06:42

A cool DIOPHANTINE equation from Math Stack Exchange! | (2a + 1)^2 - c^2 = - 1.

14:56

Solution to @blackpenredpen 's trip to Princeton Uni. problem 2!

03:38

Solution to @blackpenredpen 's trip to Princeton Uni. problem 1!

13:36

Proving obvious things can be fun | irrational numbers. number theory proof.

22:55

A video response to @MichaelPennMath | ln(sin(x))

04:43

Short trick to solve COMPLEX question from JEE mains 2013

18:03

[x + 1/x] = [x² + 1/x²] | An interesting problem involving floor functions from twitter.

24:03

7^x + 24^x = y² | When guessing is easier than concrete proofs.

09:36

Don't use BRUTE FORCE! Use BRAIN!!!

22:47

A fun and interesting problem from twitter.

17:23

Overcomplicating an easy problem from sybermath's twitter

07:08

Ez problem solved in different ways

08:12

Proving vieta's formulas for quadratic equations | quadratic stuff part 2

08:13

Proving the quadratic formula quickly by completing the square | quadratic stuff part 1

09:52

a fun n quick problem proposed by a classmate

09:56

ALWAYS CHECK IF THERE ARE ANY RATIONAL ANSWERS!! Bamboozled by question. SMT 2011 general Q4

11:46

Another great problem from the Stanford math tournament. SMT 2011 general Q 15

16:18

Pi day special! 4 questions with rather obvious connections to pi.

10:47

A fun problem suggested by @Tomioka Giyuu during a sybermath video premiere.

13:51

A fun quick problem. SMT 2021 general problems Q11

10:36

ez geometry question Part 2. Not a part of SMT, just an intriguing observation.

04:27

ez geometry question Part 1. SMT 2021 general problems Q3

27:45

Another Stanford math tournament problem, with a nice answer. SMT 2021 algebra problems Q7

12:22

How to use the remainder theorem in the RIGHT way! Stanford math tournament 2021 algebra Q1

22:56

Proving intuitive stuff about means/averages.

11:47

Easy proof for vedic math trick

17:47

factorising the area of the quadrilateral Harambe 🦍

18:55

An interesting problem involving 1/x, areas and Harambe 🦍

02:49

the nice problem @Andrew Dotson and @Flammable Maths gave in the you laugh you physics video