Classes›Class 9›Maths›NCERT›The World of Numbers›End of Chapter Exercises›Q 2
QUESTION 2 Easy

Prove that √5 is an irrational number.

SOLUTION

Assume √5 is a rational number. So, it can be written in the form of \(\frac{p}{q}, q≠0\).
\(√5 = \frac{p}{q}\)
Squaring both sides, we get
⇒ \(5 = \frac{