Question

if A and B are 2 set,then (A-B) intersection (B-A)=A∆B​

Answer 1

Answer:

Step-by-step explanation:

Case- 1 : When A=ϕandB=ϕ

Then, A−B=B−A=ϕ

So, option (a) is correct only when both A and B are ϕ.

Case - 2 : When A∩B=ϕ

In this case, there is no common elements in set A and set B.

∴A−B=AandB−A=B

So, option (b) is not correct.

Case - 3: When A=B,

In this case, both sets are equal.

∴A−B=B−A=ϕ

So, option C is also correct.