This is a very important question from NCERT maths book chapter 1 class 10 chapter 1 Ral number Example 9, Here in this question we have to Prove that √3 is an irrational number. Most of the time students get confused between Rational and irrational numbers. I also got confused by the same question. I even don’t know what are Rational/Irrational numbers so how am I going to prove it. Please help me to solve this question.