6:20

Can this be done?

24:56

Integrate 1/(1+x^3)

22:50

ARITHMETIC PROGRESSION [AP]

23:15

2015 Harvard-MIT Math Tournament #25

25:46

integral of sqrt of tanx

14:15

Functional Equation

16:49

Find all positive integer n

14:31

tell me you dont like trig without telling me you dont like trig