If a=√[6-√11] and b=√[6+√11] then . . .

Question : If a=√[6-√11] and b=√[6+√11] then the value of (a+b) is : 

(a) √22

(b) 2√11

(c) √6

(d) √12

Doubt by Veer

Solution : Coming Soon

Answer : (a) √22