Real Numbers,

NCERT Solutions for Class 10 Maths Chapter 1

Important NCERT Questions

Real Numbers

NCERT Books for Session 2022-2023

CBSE Board and UP Board Others state Board

EXERCISE 1.3

Page No:14

Questions No:3 Part 1

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Let 1/√2 is rational.

Therefore, we can find two co-prime integers a, b (b ≠ 0) such that

1/√2 = a/b

Or

√2 = b/a

b/a is as a and b are integers.

Therefore, √2 is rational which contradicts to the fact that √2 is irrational.

Hence, our assumption is false and 1/√2 is irrational.

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