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  1. Chapter 1 Class 8 Rational Numbers
  2. Serial order wise
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Example 4 Verify that – (– x) is the same as x for (i) x = 13/17 Additive Inverse of x = −x Check : 13/17+((−13)/17)=0 Additive Inverse of -x = – (– x) Check: ((−13)/17)+(13/17)=0 Thus, – (– x) = x . Example 4 Verify that – (– x) is the same as x for (ii) x = (−21)/31 Additive Inverse of x = −x Check : (−21)/31+21/31 = 0 Additive Inverse of -x = –(-x) Check: 21/31+((−21)/31)=0 Thus, –(-x) = x .

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.