Question

(a) Describe each of the following sets in the description form.
(i) {A river}
(ii) { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday}
(b) Describe the following in set builder form.
(i) {2, 4, 6, 8}
(ii) {3, 6, 9, 12, 15, 21 ...}

Answer 1

(a) (i) {The longest river in India}
(ii) {The days of a week}
(b) (i) `{x : x = 2n, n in N" and "n le 4}`
(ii) `{x : x =3n, n in N}`