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Inequality V for Vendetta!

Let a,b,c be non-negative reals with a²+b²+c²+abc = 4. Prove that: 0 ≤ ab+bc+ca-abc ≤ 2 Use your brain and not Internet to solve this Inequality. This problem ain't created by me. So its much probable that you may find it somewhere.......... RSVP

Note by Rupanshu Shah
1 week, 4 days ago

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