Question

is root of 19 rational or irrational.

Answer 1

Hey mate!

Here is ur answer...

19 is a prime number..

As we know, square root of any prime no. is always irrational!

Therefore, √19 is irrational!

Hope it helps..u

Answer 2

19 is a prime number and hence it cannot be expressed as a perfect square of any number. Therefore , root 19 is irrational.