$\sum \frac{a+b}{\sqrt{a+b^2+c^3+d^4}}$
Edited by xdtt3, 20-01-2014 - 21:25.
Tìm min của biểu thức sau, biết a,b,c,d>0
Started By xdtt3, 20-01-2014 - 21:19
-
This topic is locked
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
