If a < b, show that a < (a + b)/2 < b. The number (a + b)/2 is called the ARITHMETIC MEAN of a and b.

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- January 10th 2007, 02:05 PMsymmetryArithmetic Mean
If a < b, show that a < (a + b)/2 < b. The number (a + b)/2 is called the ARITHMETIC MEAN of a and b.

- January 10th 2007, 02:11 PMQuick
- January 10th 2007, 04:50 PMsymmetryok
Very interesting notes in this prove question and answer.