Hi, does anybody know how to prove the following statement:

For each real number r, -|r|£ r £ |r|.

by using two cases in the proof.

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- September 2nd 2007, 07:01 AMfruitcakeloverUsing cases in proofs
Hi, does anybody know how to prove the following statement:

For each real number r, -|r|£ r £ |r|.

by using two cases in the proof. - September 2nd 2007, 07:38 AMThePerfectHacker