Question 64147
{{{(2/(sqrt(2) -1))}}}
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{{{((2)(sqrt(2)+1)/(sqrt(2) -1)(sqrt(2)+1))}}}
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{{{((2)(sqrt(2)+1)/((2) -1))}}}  [the denominator is the difference of two squares.  the middle term drops out. also, the (sqrt(a)(sqrt(a) = a]
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{{{((2)((sqrt(2)+1))/(1))}}}
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{{{((2)(sqrt(2)+1))}}}