Question

If U={18,19,20,21,22,23,24,25,26,27,28} ,A=(20,22,23,25} and

B={19,20,21,22,26}.Verify that :

(i) ( A U B )’

= A’ ∩ B ‘ ​

Answer 1

(A U B ) = {19,20,21,22,23,25,26}

(A intersection B) = {20,22}

SO,

(A U B ) not equal to (A intersection B)