Question

Prove that √5 is irrational. class10 on maths. ​

Answer 1

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Answer 2

Answer:

Let us prove that √5 is an irrational number, by using the contradiction method. So, say that √5 is a rational number can be expressed in the form of pq, where q ≠0. So, let √5 equals pq. ... Now, we can observe that p2 is a multiple of '5' because p2 is expressed as 5×q2.