Edited by perfectstrong, 12-12-2011 - 20:42.
Tìm min của $A=(x^4+1)(y^4+1)$
Started By Trần Hồng Sơn, 12-12-2011 - 18:44
#1
Posted 12-12-2011 - 18:44
Cho $x+y=10$. Tìm GTNN $A=(x^4+1)(y^4+1)$ x,y>0
#2
Posted 12-12-2011 - 19:03
không cho điều kiện của x,y à bạn
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#3
Posted 12-12-2011 - 22:06
Tham khảo lời giải ở đây http://diendantoanho...l=&fromsearch=1
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