Let S={a, b, c}. a. List all permutations of S. b. List all 2-combinations of S.

Question

Joseph Lynch

Mathematics

21 May, 15:59

Let S={a, b, c}. a. List all permutations of S. b. List all 2-combinations of S.

+3

Answers (1)

Know the Answer?

Cassandra Maxwell · Answer 1

Answer: The answer is as follows:

Step-by-step explanation:

Given that,

S = {a, b, c)

(a) All the permutations of S are as follows:

= 3!

= 3 * 2 * 1

= 6

(a, b, c), (a, c, b), (b, a, c), (b, c, a), (c, a, b), (c, b, a)

(b) All 2-combinations of S are as follows:

= 3

(a, b), (b, c), (a, c)