13:51

so you want a VERY HARD math question?!

1:30:13

Oxford University Mathematician TORTURES Physicist with MAT Entrance Exam

11:14

The Man Who Solved the World’s Most Famous Math Problem

31:27

EXTREME quintic equation! (very tiring)

59:55

Oxford University Mathematician takes Oxford PHYSICS Admissions Test (PAT) - with @zhelyo_physics

1:01:18

Oxford Mathematician Challenges Physics Teacher to A Level Maths Exam

22:28

so you want a HARD integral from the Berkeley Math Tournament

12:50

I visited the world's hardest math class