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Jun
30
answered Show that $\frac {\partial B} {\partial T} =$ $\frac{c}{(\exp\frac{hf}{kT}-1)^2}\frac{hf}{kT^2}$
Jun
30
comment Prove the limit is $e^\alpha$
change of variable
Jun
30
answered What is n (Natural number) if the function has to have a limit not equal to zero or infinite?
Jun
30
revised What is n (Natural number) if the function has to have a limit not equal to zero or infinite?
added 3 characters in body
Jun
30
answered Prove the limit is $e^\alpha$
Jun
30
comment Find MGF of random variable X
and what's the problem with that?
Jun
28
revised Product limit with exponentials
edited body
Jun
26
answered Product limit with exponentials
Jun
23
comment Implicit derivative of a rational function.
Pls see the edit
Jun
23
revised Implicit derivative of a rational function.
added 107 characters in body
Jun
23
comment Implicit derivative of a rational function.
Did you read my answer?
Jun
23
answered Implicit derivative of a rational function.
Jun
17
revised $E[X^2]$ computing problem. Where does it go wrong?
added 2 characters in body
Jun
17
revised Unusual Asymptotics Question
edited body
Jun
17
comment Unusual Asymptotics Question
yes that's right, thanks
Jun
16
comment Unique Combinations
The solution is essentially a sum over 6 binomial coefficients. A binomial coefficient counts the number of ways of allocating $k$ items in $n$ slots.
Jun
16
answered Unique Combinations
Jun
16
answered Unusual Asymptotics Question
Jun
15
answered Proving recurrence by mathematical induction
Jun
11
awarded  Good Question