Saturday

January 31, 2015

January 31, 2015

Posted by **sierra** on Monday, March 5, 2007 at 3:48pm.

For subtraction : Because a - b and b - a are not the same. They are of opposite sign.

For division:

a/b does not equal b/a. If it did, you would have a^2 = b^2 for ANY a and b, which is impossible

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