13:07

Derivative of Lambert W function

17:50

1973 USAMO ( System of equations)

16:33

USA Math Olympiad question with @PKMath1234

19:25

x^3 -3x=sqrt(x+2) @pkqualitymath1234

13:42

Fun proofs

16:24

Evaluating a series of factorials

9:44

two number theory problems

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Find all x