Question

if A={x:x =2k +1,k£N,k<5} B={x:x is a composite number number, x<12} ​

Answer 1

A={x:x =2k +1,k£N,k<5} , k £ { 1,2,3,4}

x=2k+1

= 2(1)+1

= 2+1 =3

= 2(2)+1

=4+1 =5

= 2(3)+1

=6+1 =7

=2(4)+1

=8+1 =9

A = {3,5,7,9}, B = {4,6,8,9,10}

Answer 2

Answer:

A={3,5,7,9}, B={4,6,8,10}