Jump to content
You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.
Lính mới
Cho a,b,c là ba cạnh của 1 tam giác.abc=1.Chứng minh rằng:
a2b+b2c+c2a>=căn[(a+b+c)(a2+b2+c2)]
0 members, 1 guests, 0 anonymous users