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rationalize

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Dealing with surds 2015-11-14
From Agnes:
simplify (1-√3)(13+√3)
Answered by Penny Nom.
1[1-√2(order of surd is 4)] 2014-05-02
From Anoushka:
if t=1[1-√2(order of surd is 4)] , then t=?
Answered by Penny Nom.
The limit as x approaches 3 of (sqrt(x+1)-2)/(x-3) 2005-04-14
From Abraham:
What is the limit as x approaches 3 of (sqrt(x+1)-2)/(x-3)
Answered by Penny.
Simplifying Radicals 1999-01-26
From Mary:
I would like to know how to simplify this question:
   
4 __________________ squareroot7 + squareroot3 
I know the answer is (sqrt7 - sqrt3) but i would really love to know how to get that answer!! Thanks.

Answered by Jack LeSage and Penny Nom.
 
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