Question

every important intelligent students pls answer all 4 step by step pls
1 .if a ={5,6,7,8} then a =?
2 if a ={3,4,5,6} b ={4,5,3,6} the A and B are which sets?
3 if a={ prime numbers less than 30 }
then n(a)=?
4 {favourite cricket players} is a set or not ?
pls urgent I want all answers ​

Answer 1

Answer:

1.16

2.a=18,b=18

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