Question

find an irrational number between 5 by 7 and 7by9.how many more there may be ?​

Answer 1

Answer:

5/7

and

7/9

are two rational numbers.

To find, an irrational number between

5/7

and

7/9

Square root of given number

5/7

multiplied by square root of

7/9

we get,

an irrational number =

√5×√7/√7×√9

=√5/√9

=√5/3

Then, the irrational number is

√5/3

And we get infinite number of irrational numbers between two rational numbers.