Question

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-C v) B-D vi) B-A
vii) C-B viii) C-A ix) C-D
x) D-C xi) D-B xii) D-A​

Answer 1

Answer:

abyu8yu87uuyyttyyrtyyyyyyyy

Answer 2

Answer:

i) {1,3,6,9,21}

ii) { 1,2,3,7,8}

iii) { 1,2,3,5}