Which of the following is equal to ^2 A. 1 B. 5 C. : PS Archive
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# Which of the following is equal to ^2 A. 1 B. 5 C.

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Which of the following is equal to ^2 A. 1 B. 5 C. [#permalink]

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05 Feb 2007, 16:30
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Which of the following is equal to [1/(sqrt(3)-sqrt(2))]^2

A. 1
B. 5
C. sqrt(6)
D. 5-sqrt(6)
E. 5+2sqrt(6)
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05 Feb 2007, 16:35
E. 5+2sqrt(6)

Multiply the Numerator and denominator with sqrt(3)+sqrt(2). THen square the result. You will get E.
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05 Feb 2007, 17:06
yup get E as well..assuming the question is

([1/sqrt(3)] - [1/sqrt(2)])^2
05 Feb 2007, 17:06
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