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March 3, 2015

March 3, 2015

Posted by **Jay C** on Tuesday, February 21, 2012 at 9:02am.

- algebra -
**drwls**, Tuesday, February 21, 2012 at 9:10amThis is not trig.

(3 - sqrt2)/(1 + sqrt2)

= (3-sqrt2)(1-sqrt2)/[(1-sqrt2)(1+sqrt2)]

= [3 - 4sqrt2 +2]/(1-2)

= (5 -4sqrt2)/-1

= 4sqrt2 -5

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