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posted by Taurus on Tuesday, April 24, 2012 at 4:08pm.

square of u - square root of v/ square root of u + square root of v.

that makes no sense

It appears you want to rationalize the fraction. So, multiply top and bottom by sqrt(u)-sqrt(v) That gives you (sqrt(u)-sqrt(v))^2/(u-v) = (u - 2sqrt(uv) + v)/(u-v)

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