Question 64147
Can you help me with rationalizing the denominator on the following:  
2/(sqrt2 -1).  
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Multiply numerator and denominator by (sqrt2+1) which is the 
conjugate of the denominator you have in your problem:
=[2*(sqrt2+1)]/[(sqrt2-1)(sqrt2+1)]
=[2*(sqrt2+1)]/[(sqrt2)^2 - 1^2]
=[2*(sqrt2+1]/1
=2sqrt2+2
Cheers,
stan H.