NCERT Class 8 Solutions: Rational Numbers (Chapter 1) Exercise 1.1 – Part 2
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Q3 Verify that: for.
Solution:

The additive inverse of is
As
The same equality, shows that the additive inverse of
There are

The additive inverse of is
As
The same equality shows that the additive inverse of
There are
Q4 Find the multiplicative inverse of the following.
Solution: