square root division

D

davinea

New member
Joined
Sep 5, 2008
Messages
6
[SPLIT] solve square root of a divided by 1 + square root of a

i have not done any algebra since the tenth grade and i forgot how to solve division on square roots.

how would you solve:

the square root of a divided by 1+ the square root of a

(sorry again for not being good with computers, i don't know how to put signs and things in)
 
Re: [SPLIT] solve square root of a divided by 1 + square root of

davinea said:
i have not done any algebra since the tenth grade and i forgot how to solve division on square roots.

how would you solve:

the square root of a divided by 1+ the square root of a

(sorry again for not being good with computers, i don't know how to put signs and things in)
Click to expand...

Please start a new topic (thread) with a new problem.

In the problem you posted:

\(\displaystyle \frac{\sqrt{a}}{1+\sqrt{a}}\)

There is no problem-statement - and no "=" sign - hence there is nothing to solve.

Please look at your problem and post the 'exact" problem.
 
solve square root of a divided by 1 + square root of a

i am not sure how to get the answer. would someone please help me. and just to let me know this is not my homework, its a sample question for a test and i would just like to know it is worked out. thanks in advance

the square root of a over 1+the square root of a = ?
 
Re: solve square root of a divided by 1 + square root of a

Is this it:

\(\displaystyle \frac{\sqrt{a}}{1+\sqrt{a}}\)?.

What is it you're supposed to do with it?. I see no equation to solve. You can long divide it to expand, but that's all I see to do with it.
 
Re: solve square root of a divided by 1 + square root of a

the question asks what it equals and the answer is:

the square root of a minus a over one minus a

and i don't know how to get to the answer, and i am sorry about not being able to make the equation on the computer, i don't know how to make square roots and stuff.
 
Re: solve square root of a divided by 1 + square root of a

multiply the numerator and the denominator by - the "conjugate" of the denominator:

In your problem the denominator is:

\(\displaystyle 1 \, + \, \sqrt{a}\)

it's conjugate is:

\(\displaystyle 1 \, - \, \sqrt{a}\)

so your expression becomes:

\(\displaystyle \frac{\sqrt{a}}{1+\sqrt{a}} \cdot \frac{1 \, - \, \sqrt{a}}{1 \, - \, \sqrt{a}}\)

Now simplify....
 
Re: solve square root of a divided by 1 + square root of a

okay, thank you. i remember doing this type of thing last year but i just couldn't remember how to set it up. thank you for your help
 
You must log in or register to reply here.
Top