√u^2 =u for any number u. True or False?

i think it's true...

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- Sep 20th 2011, 07:07 AMnaturebuilder√u^2 =u for any number u. True or False?
√u^2 =u for any number u. True or False?

i think it's true... - Sep 20th 2011, 07:14 AMPlatoRe: √u^2 =u for any number u. True or False?
- Sep 20th 2011, 12:19 PMpsolakiRe: √u^2 =u for any number u. True or False?