Question

1) n(AUB) = n(A) + n(B)
2) n(A-B) + n(
AB) = n(A)
3) n(B - A)+(ACB) = n( B)
4) n(AUB) = n(A-B) + n(B - A) + n(AB)
5) n (u) = n(A) + n(A)
CHALLENGERS
If A = {1, 2, 3, 4), B = {3, 4, 5, 6) and C = {1, 2, 4, 6, 7), then find
i) AUB
ii) BUC
iii) (AUB) UC
iv) An(BUC
v) AU(BUC)
vi) A-(BUC
vii) (A-BU(A-C)
If u = {2, 3, 4, 5), A = {2,4} and B = (3, 4), then verify the followi​

Answer 1

Answer:

i ) = {123456}

ii)= {123456}

iii) ={34}

iv) = {46}

v)= {1235}

vi)