Question

class 11th
chapter - 1 (sets)
plzz help.....

Answer 1

1. no
2. yes
3. yes
4. yes
5. no

Answer 2

Hey!!!...Here is ur answer

1. Yes --- bcoz all prime numbers are well defined and not repeated

2. No ---- bcoz One player is good for any person and other player is good for any other person...So it's not well defined

3. No --- bcoz there are no criteria fixed to be rich

4. Yes -- bcoz natural numbers are well defined

5. Yes -- bcoz odd integers are well defined

Hope it will help you