Question

2€{{2},{{2}}} true or false​

Answer 1

Answer:

(1)1∈(1,2,3)

yes, 1 is an element of the set {1,2,3}

(2)a⊂{b,c,a}

yes ,a is a subset of {b,c,a}

(3)a∈{a,b,c}

yes,a is an element of {a,b,c}

(4){a,b}={a,a,b,b,a}

yes, the following statement is true.

(5){0}

The set is not a null set the statement is False.