Question

4 Marks : 1.- = If A = {3,6,9,12, 15, 18, 21}, B = {4, 8, 12, 16, 207, C = {2, 4, 6, 8, 10, 12, 14, 16; and D = {5, 10, 15, 20), then find : A-B, A - C.B - A, C - A, D - A, B - D, C, B, D-B. ​

Answer 1

Answer:

If A = {3,6,9,12, 15, 18, 21}, B = {4, 8, 12, 16, 207, C = {2, 4, 6, 8, 10, 12, 14, 16; and D = {5, 10, 15, 20), then

     A-B={3,6,9, 15, 18, 21}

        A-C= {3,9, 15, 18, 21}

B-A={4, 8, 16, 207}

C-A={2, 4, 8, 10, 14, 16}

D-A= {5, 10,20}

B-D={4, 8, 12, 16, 207}

C = {2, 4, 6, 8, 10, 12, 14, 16}

B = {4, 8, 12, 16, 207}

D-B={5, 10, 15, 20}.

Step-by-step explanation:

If A = {3,6,9,12, 15, 18, 21}, B = {4, 8, 12, 16, 207}, C = {2, 4, 6, 8, 10, 12, 14, 16}; and D = {5, 10, 15, 20}

Then A-B={3,6,9, 15, 18, 21}

        A-C= {3,9, 15, 18, 21}

B-A={4, 8, 16, 207}

C-A={2, 4, 8, 10, 14, 16}

D-A= {5, 10,20}

B-D={4, 8, 12, 16, 207}

C = {2, 4, 6, 8, 10, 12, 14, 16}

B = {4, 8, 12, 16, 207}

D-B={5, 10, 15, 20}