Question

Which of the following is a rational number?

square root 97
square root 98
square root 99
square root 100

Answer 1

`√(100)` is a rational number

Explanation:

`√(97)=9.848857.....\\\\√(98)=√(2*7*2)=2√(7)\\\\√(99)=√(3*3*11)=3√(11)`

Square root of all prime numbers are irrational numbers