ProfessorFilostrato

06-05-2005, 02:54 PM

Could someone help me simplify the square root of 98/27?

View Full Version : Simplify The Expression

ProfessorFilostrato

06-05-2005, 02:54 PM

Could someone help me simplify the square root of 98/27?

tkhunny

06-05-2005, 03:13 PM

Could someone help me simplify the square root of 98/27?

Prime Factorization will ALWAYS assist with these.

27 = 3^3 = (3^2)*3 <== I'm looking for perfect squares.

98 = 2*(7^2)

sqrt(98/27) = sqrt([2*(7^2)]/[(3^2)*3]) = (7/3)*sqrt(2/3)

Prime Factorization will ALWAYS assist with these.

27 = 3^3 = (3^2)*3 <== I'm looking for perfect squares.

98 = 2*(7^2)

sqrt(98/27) = sqrt([2*(7^2)]/[(3^2)*3]) = (7/3)*sqrt(2/3)

ProfessorFilostrato

06-05-2005, 09:05 PM

Okay...lemme see of I understand you right....my final answer would be 7/3 times the sqrt of (2/3)?

tkhunny

06-05-2005, 10:07 PM

my final answer would be 7/3 times the sqrt of (2/3)?

It is possible that you will be required to rationalize the denominator. Personally, I don't consider that a necessary part of "simplify", but not everyone agrees with me.

(7/3)*sqrt(2/3) = (7/3)*sqrt(2/3)*sqrt(3/3) = (7/3)*sqrt(6/9) = (7/3)*(1/3)*sqrt(6) = (7/9)*sqrt(6)

It is possible that you will be required to rationalize the denominator. Personally, I don't consider that a necessary part of "simplify", but not everyone agrees with me.

(7/3)*sqrt(2/3) = (7/3)*sqrt(2/3)*sqrt(3/3) = (7/3)*sqrt(6/9) = (7/3)*(1/3)*sqrt(6) = (7/9)*sqrt(6)

Powered by vBulletin® Version 4.2.2 Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.