Can someone show me how 1/√2 is the same as √2/2 ?

Most appreciated

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- March 13th 2008, 03:39 PMjohnnyturbo3Quick question
Can someone show me how 1/√2 is the same as √2/2 ?

Most appreciated - March 13th 2008, 03:44 PMmr fantastic
- March 13th 2008, 03:51 PMtrighelp34_ariel
yeah, you're not supposed to have radicals in the denominator of a fraction, therefore you multiply the top and the bottom of the fraction by √2 and so the squareroot is cancelled out of the bottom, leaving 2. and √2 is multiplied by one on the top, which leaves √2/2