# Ex 1.1, 3 - Chapter 1 Class 8 Rational Numbers

Last updated at June 22, 2018 by Teachoo

Last updated at June 22, 2018 by Teachoo

Transcript

Ex 1.1, 3 Verify that ( x) = x for. (i) x = 11/(15 ) Additive inverse of x = x Check: 11/(15 ) + (( 11)/15)=0 Additive inverse of x = ( x) = (( 11)/15) = 11/(15 ) Check: ( 11)/15+11/15=0 Thus, ( x) = x . Ex 1.1, 3 Verify that ( x) = x for. (ii) x = 13/( 17 ) Additive inverse of x = x Check: (( 13)/17) + ( 13)/17 =0 Additive inverse of x = ( x) = (13/17) = ( 13)/17 Check: ( 13)/17 + (( 13)/17) = 0 Thus, (-x) = x .

Ex 1.1

Ex 1.1, 1 (i)

Ex 1.1, 1 (ii)

Ex 1.1, 2 (i) Important

Ex 1.1, 2 (ii)

Ex 1.1, 2 (iii)

Ex 1.1, 2 (iv)

Ex 1.1, 2 (v)

Ex 1.1, 3 You are here

Ex 1.1, 4 (i) Important

Ex 1.1, 4 (ii)

Ex 1.1, 4 (iii)

Ex 1.1, 4 (iv)

Ex 1.1, 4 (v)

Ex 1.1, 4 (vi)

Ex 1.1, 5 Important

Ex 1.1, 6

Ex 1.1, 7

Ex 1.1, 8

Ex 1.1, 9

Ex 1.1, 10 (i) Important

Ex 1.1, 10 (ii)

Ex 1.1, 10 (iii)

Ex 1.1, 11 Important

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.