Question

Write set A = {y: y = 2x + 1, x = W and x < 5) in the roster form and also in
descriptive form​

Answer 1

Answer:

The set of whole numbers less than five:

Descriptive form

{1,3} : Roster form

Explanation:

Roster form

x=0,2x+1=2×0+1=1

x=1,2x+1=2×1+1=3

x=2,2x+1=2×2+1=5

but 1 and 3 are less than 5

so, {1,3}