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29 Mar 2004, 10:38
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I think this one is B. I have no way of doign this, just approximate and check.
square root of 96 is about 10
+ 2/ 5+ square root of 72 which is approx 8
so this is about square root of 10 and square root of 10 of 10, is square root of 5.
square root of 96 is about 10
+ 2/ 5+ square root of 72 which is approx 8
so this is about square root of 10 and square root of 10 of 10, is square root of 5.
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29 Mar 2004, 11:36
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C is the answer.............!! heres how to do it:
sqrt 96 = sqrt(16*6) = 4sqrt6.
Hence the equation becomes= sqrt{(4sqrt6[5+2sqrt6]+2)/(5+2sqrt6)}
which is=sqrt{20sqrt6+50/5+2sqrt6}........factor of 10 comes out in the numerator and the numerator and denominator cancel each other leaving answer as sqrt10.
sqrt 96 = sqrt(16*6) = 4sqrt6.
Hence the equation becomes= sqrt{(4sqrt6[5+2sqrt6]+2)/(5+2sqrt6)}
which is=sqrt{20sqrt6+50/5+2sqrt6}........factor of 10 comes out in the numerator and the numerator and denominator cancel each other leaving answer as sqrt10.
31 Mar 2004, 11:00
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C.
sqrt(96) = 4 sqrt(6)
If we multiply the second half's numerator and denominator with
(5 - 2 sqrt(6)).
sqrt(96) = 4 sqrt(6)
If we multiply the second half's numerator and denominator with
(5 - 2 sqrt(6)).
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
