Question

If the product of two positive no is 9 then the possible value of the sum of reciprocal lies in the interval

Answer 1

Answer:

lies in the interval 0 to 1

as product of two positive no. is 9

and there are only 2 multiples for this :

i) 9*1 and ii) 3*3

if i) case then sum of reciprocal will be (1/9 +1/1) I.e 1/9 which is less than 1 but greater than 0

if ii) case then (1/3 +1/3) I.e 2/3 which is greater than 0 but less than 1