Question

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

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)