Simplify: Sqrt20/5 -1/sqrt 5 = (√5 x√20-5)/(5x√5)=1/√5
Simplify: Sqrt1/6 = √(1=) 1= 1/6
Simplify: 9Sqrt6 - 9 Sqrt2= 9√6-9√2=9√2 (√3-1)
Simplify: 3 Sqrt486= 3√486= 3√81 x√6=27√6
if this is correct is this what they are looking for? Thank you all for your input.
2007-10-31 08:13:38 · 5 answers · asked by chas_lynn2002 2 in Science & Mathematics ➔ Mathematics
It would help if you use parentheses so we can tell what falls under the radical.
"Sqrt1/6" Is that √(1/6) or (√1)/6?
For √(1/6):
√(1/6) = √(1)/√(6)
= 1/√(6)
= √(6)/6 because you don't leave a radical in the denominator.
For (√1)/6:
(√1)/6 = 1/6
2007-10-31 08:19:29 · answer #1 · answered by DWRead 7 · 1⤊ 0⤋
The last 2 are correct.
The 1st two are difficult to understand since you do not make it clear what is under the radical sign.
sqrt20/5 = 2sqrt(5)/5 or could it be sqrt(20/5) = sqrt(4) = 2?
I assume it is the 1st one Then answer is:
2sqrt(5)/5 -1/sqrt(5) = 2sqrt(5)/5 -sqrt(5)/5 = sqrt(5)/5, so your answer is incorrect.
sqrt(1)/6 = 1/6
Sqrt(1/6) = 1/sqrt(6) = sqrt(6)/6
Take your pick depending on the proper interpretation.
2007-10-31 08:35:45 · answer #2 · answered by ironduke8159 7 · 0⤊ 1⤋
Please rephrase this-it looks good but for ex on the first one you mean root 5 times root(20-5) or root(20)-5??
2007-10-31 08:18:14 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Use some parentheses... I can't tell what is being "square rooted" and what is not...
2007-10-31 08:16:35 · answer #4 · answered by Dave 6 · 1⤊ 0⤋
dude bet cant noone on here answer dat
2007-10-31 08:17:45 · answer #5 · answered by Ms.Freaky 1 · 1⤊ 2⤋