 Ask Remember Me? ronniebelle Posts: 1, Reputation: 1 New Member #1 Jan 18, 2010, 12:55 PM
Algebraic proofs
Prove that
Given a<b
Given c<d ebaines Posts: 12,131, Reputation: 1307 Expert #2 Jan 18, 2010, 01:03 PM

Let and . Then sub these into ad + because and ac + bd, and see how the two compare.

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