Question

Q1. If A = {3, 6, 9, 12, 15, 18, 21}, B = { 4, 8, 12, 16, 20 }, C = { 2, 4, 6, 8, 10, 12, 14, 16 },
D = {5, 10, 15, 20} Find (i) A – B (ii) A – C (iii) A – D
(iv) B – A (v) C – A (vi) D – A
(vii) B – C (viii) B – D (ix) C – B

Answer 1

Answer:

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

A-C = {3,9,15,18,21}

A-D = {3,6,9,12,18,21}

B-A = {4,8,16,20}

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

D-A = {5,10,20}

B-C = {20}

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

C-B = {2,6,10,14}

Check the above answers