C
coca cola
Guest
i posted this in the other thread but i don't think many people sees it so, i really need some help with this.
use:
ab+bc+ca <= a^2 + b^2 + c^2
show:
(bc)^2 + (ac)^2 + (ab)^2 <= bc(a)^2 + ac(b)^2 + ab(c)^2
can you just times each terms individually like that, if you know what i mean? this does not seem obvious to me, any explaination of why?
use:
ab+bc+ca <= a^2 + b^2 + c^2
show:
(bc)^2 + (ac)^2 + (ab)^2 <= bc(a)^2 + ac(b)^2 + ab(c)^2
can you just times each terms individually like that, if you know what i mean? this does not seem obvious to me, any explaination of why?
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