"Let `a,b inQ""such that""(39sqrt2-5)/(3-sqrt2)=a+bsqrt2,` then (A) `sqrt((b)/(a))`
Channel: Doubtnut
Date: 2020-04-12

Let `a,b inQ"such that"(39sqrt2-5)/(3-sqrt2)=a+bsqrt2,` then 
(A) `sqrt((b)/(a))` is a rational number 
(B) b and a are coprime rational numbers 
(C) b-a is a composite number 
(D) `sqrt(a+b)` is a rational number