Question

find a rational number and two irrational numbers between 9and13

Answer 1

The rational numbers between 9&13 are:-
10,11,12

Two irrational numbers between 9&13 are:-
9.4568595..
12.785165....

We can find an irrational number using formula √ab
where a and b are given numbers.
√9×13=√127 is also an irrational number.

hope it helps

Answer 2

1)rational number between 9 and 13 =(9+13)/2=22/2=11
2) irrational number between a and b=root(ab)
i)root(9*13) =root(3×3×13) =3root(13)
ii) second irrational number=root[9*(3root13)
=3root[3*root13]