Problem- 27
Use set builder notation to give a description of each of these sets.
a) {0,3,6,9,12}
b) {−4, −3, −2, −1, 0, 1, 2, 3, 4}
c) {a, b, c, r, s}
Solution
a) {0,3,6,9,12}
{3n|n=0,1,2,3,4}
b) {−4, −3, −2, −1, 0, 1, 2, 3, 4}
{x|−4≤x≤4}, where the domain is the set of integers.
c) {a, b, c, r, s}
{x|x is a letter of the word scrabble other than l or e}