Question

A={1, 2,{3, 4},5} then which symbol will be come between, {3, 4} and A​

Answer 1

Answer:

=

Explanation:

i hope is this correct

Answer 2

Explanation:

A={1, 2,{3, 4},5}

1 €A

2€A

5€A

{3,4} is subset of A

{3,4}⊂A