NCERT Class 8 Solutions: Rational Numbers (Chapter 1) Exercise 1.1 – Part 2

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Q-3 Verify that: for.

Solution:

Given the additive Inverse law apply in equations

Given the Additive Inverse Law

Given the additive Inverse law apply in equations

  1. The additive inverse of is

    As

    The same equality , shows that the additive inverse of

    There are

  2. The additive inverse of is

    As

    The same equality shows that the additive inverse of

    There are

Q-4 Find the multiplicative inverse of the following.

Solution:

Given the Multiplicative Inverse law apply in equations

Given the Multiplicative Inverse Law

Given the Multiplicative Inverse law apply in equations