Question

1) if A={x:x€N and x<20} and B={x:x€N and x<5} then write the set A-B in the set builder form​

Answer 1

Step-by-step explanation:

A = ( 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19)

Because, x belongs to number and x is smaller than 20 .

so , the set will be formed with only such numbers which are smaller than 20.

B = ( 1,2,3,4,5 )

this is the same case . x is such numbers which are smaller than 5 .