Cho a,b,c [1/3;3]
CMR:
a/(a+b)+b/(b+c)+c/(c+a) 7/5
Ai giúp em với,em cảm ơn nhiều
Cuu Tuyet Kiem Ma's Content
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There have been 2 items by Cuu Tuyet Kiem Ma (Search limited from 25-05-2020)