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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- Jan 10th 2007, 01:05 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.

- Jan 10th 2007, 01:11 PMQuick
- Jan 10th 2007, 03:50 PMsymmetryok
Very interesting notes in this prove question and answer.