2006-06-06 11:48:38 · 5 answers · asked by sara b 1 in Science & Mathematics ➔ Mathematics
12sqrt(1/3) - sqrt(27)
sqrt(1/3)
= sqrt(1)/sqrt(3)
= 1/sqrt(3)
= sqrt(3)/3
sqrt(27) = sqrt(9*3) = 3sqrt(3)
12*sqrt(3)/3 - 3sqrt(3)
= 4sqrt(3) - 3sqrt(3)
= sqrt(3)
2006-06-06 11:52:56 · answer #1 · answered by MsMath 7 · 1⤊ 0⤋
Is the answer...12 square root 26 1/3 or 12 square root -26 1/3? I don't know... I'm just guessing.
2006-06-06 18:53:00 · answer #2 · answered by »SMiLEY« 4 · 0⤊ 0⤋
12 sqrt(1/3) = sqrt(48).
sqrt(48) - sqrt(27) = 1.7320508075688772935274463415059
So the answer is sqrt(3).
2006-06-06 18:52:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋
12sqrt(1/3) - sqrt(27)
12sqrt(1/3) = 12 * (sqrt(1))/(sqrt(3))
Multiply top and bottom by sqrt(3)
12sqrt(1/3) = 12(sqrt(3))/3
Reduces to
4sqrt(3)
sqrt(27) = sqrt(9 * 3) = 3sqrt(3)
Now you get
4sqrt(3) - 3sqrt(3)
(4 - 3)sqrt(3)
ANS : sqrt(3)
2006-06-07 14:23:59 · answer #4 · answered by Sherman81 6 · 0⤊ 0⤋
12 sqrt(1/3) - sqrt(27) =
( 12 / sqrt(3) ) - 3 sqrt(3) =
( 12 - 9 ) / sqrt(3) =
3 / sqrt(3) =
3 sqrt(3) / 3 =
sqrt 3
2006-06-06 18:52:23 · answer #5 · answered by Anonymous · 0⤊ 0⤋