Question

find the ans of this que with explanation..... ​

Answer 1

let 2 no's be x,y

xy= 9

AM>=GM

( x+ y) >= 2√xy

(x+y)>= 2√9

( x+y)>=6

1/x + 1/y

( x+ y)/ xy

min.value of x+y = 6

6/9

2/3

So ( 2/3, infinity)