Question

what mene of "∈" please tell me clirealy with a example in language hindi

Answer 1

∈ means belongs to i.e suppose A = { 1 2 3 4 5 }  here 3 is the element of A .then we may write 3 ∈ A

Answer 2

this mines 'belongs to '
example :A=[1,2,3,4,5]
U=[1,2,3,4,5,6,7,8,9,10]
Hear we saw that all elements of A is in the set of U or the universal set .
So A belongs to U.
this is the answer of your question