Telangana Board Solutions for Chapter: Rational Numbers, Exercise 7: Exercise 7

If a property holds good with respect to addition for rational numbers, whether it holds good for integers? And for whole number? Which one hold good and which doesn't hold good?

Write the numbers whose multiplicative inverses are the numbers themselves.

Can you find the reciprocal of $\text{'}0\text{'}$(zero)? Is there any rational number such that when it is multiplied by $\text{'}0\text{'}$ gives $\text{'}1\text{'}$?

$\_\_\_\_\_\times 0=1$ and $0\times \_\_\_\_\_=1$