Question

If AUB = A, then
a) ACB b) BCA

d) B=A d ) None of these​

Answer 1

Answer:

B=a

This means that b equal to a

Answer 2

Option B. $B \subset A$ is the correct answer.

Step-by-step explanation:

Since it is given that $A \bigcup B = A$  

We can say that all the elements that are in B are present in A.  

Therefore, $B \subset A$

For example:

If

$A=(1,2,3,4,5)\\B=(3,5)$

then,

$A \bigcup B = A$

Since, all the elements that are in B are present in A.

Hence we can conclude that

$B \subset A$