Question

If R = {s, t, a, r} and S = {c, 1, o, u, d) then ROS= ?
(a) {s, t,a, r, c, I, o, u, d}
(b) {s, t, a, r}
(c) {c, I, o, u, d)
(d) 0​

Answer 1

Answer:

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OPTION 3 is correct answer