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OpenStudy (anonymous):
How would you simplify this expression? [see picture]
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OpenStudy (anonymous):
|dw:1331483883273:dw|
OpenStudy (phi):
you can rewrite sqrt(8) as sqrt(4*2)= 2sqrt(2). Also, multiply top and bottom by sqrt(6)-sqrt(2) to get rid of the square roots in the denominator.
OpenStudy (phi):
you should get sqrt(3)-1
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