Answers

2016-04-24T12:37:30+05:30
√(18-6√5) = √a  + √b
Squaring both sides,
    (18-6√5) = (√a  + √b)²
⇒ (18-6√5) = a+b +2√a√b
Comparing rational and irrational parts from both sides, we get,
a+b=18.                                                                  (Hence, proved)





0