Question

what is indempotent law???

Answer 1

In Boolean algebra, Idempotent Law states that combining a quantity with itself either by logical addition or logical multiplication will result in a logical sum or product that is the equivalent of the quantity (ex- A + A = A; A x A = A).

Answer 2

idempotent Law :- this is related to set .
A union A = A
A intersection A = A

explanation :-
Aunion A means A or A .this is true
if two same set A ={ 1 , 2, 3}
and B ={ 1 , 2 , 3}
then, AUB = {1 , 2, 3} this is also set Let C here we see C = A = B
so, AUB =A =B
so,
if two set A and A
then AUA = A

A intersection A means common of A and B ,
let two set A ={ 1, 2, 3}
and B ={ 1 , 2, 3}
then,
AnB = { 1 , 2, 3}
so, AnB = A = B
hence,
AnA = A