Question

If A = { 1,2,3,4,5 }, B = { 4,5,6,7 } then find B-A ?​

Answer 1

Answer:

A={1,2,3,4,5}; B={4,5,6,7}A - B={1,2,3}

B - A={6,7}

Clearly it is seen that:

(A-B) \neq (B-A)(A−B)=(B−A)