Question

prove that if A is a subset of B then AUB=B​

Answer 1

Answer:

what's your question ?

Answer 2

Step-by-step explanation:

Given that :- A c B .

To prove:- AUB =B.

proof:- let suppose A =( 1 ,2 ) --------1

and B = ( 1,2,3,4)________2

We know that set A is a subset of Set B

AUB = ( 1,2,3,4) _______3

from equation 2 and 3

AUB = B hence proved