[COLOR=var(--primary-text)]a,b,c >= 0
ab+bc+ca+abc=4
Prove that:
a+b+c+5abc >= 8
[/COLOR]
[COLOR=var(--secondary-text)]
[/COLOR]
[COLOR=var(--primary-text)]a,b,c >= 0
ab+bc+ca+abc=4
Prove that:
a+b+c+5abc >= 8
[/COLOR]
[COLOR=var(--secondary-text)]
[/COLOR]
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