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Jacob L.

asked • 09/16/17

How do I prove this statement using properties of numbers: If a < 0, b < 0, then √ab ≤ −(a+b)/2?

Calculus: Proofs

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Andy C. answered • 09/17/17

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Kenneth S.

Andy, I don't think part 2 of your proof is needed, because the PRINCIPAL square root is involved, and it's positive.
 
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09/17/17

Kenneth S. answered • 09/17/17

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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018

Andy C.

We got 2 nice proofs.
Thank you Kenneth!
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09/17/17

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