Question

writr it is rational and irrational (√5-√3)(√5+√3)

Answer 1

HERE IS THE SOLUTION FOR YOUR'S QUESTION;

The identity to be used here to solve this is (a+b)(a-b)=a^2-b^2.

So, By applying the identity, we get;

5-3=2.

We know that 2 is a Rational Number.

So this expression is RATIONAL.



HOPE it helps