How do you rationalize the denominator #(3 sqrt 5 + 2) / (3 sqrt 5 + 5)#?
1 Answer
Jun 4, 2015
You must look for a binomial that multiplied by the denominator makes the root disappear.
Usually, when you want to rationalize a binomial denominator you will multiply it by its conjugate, in this case
As you know, in order to preserve the fraction, you will multiply it by 1, which is the same as