Answer:
SAQ 23 Evaluate
a. 5! = 120
Solution:
5! = 5 x 4 x 3 x 2 x 1 = 120
b. 2! + 4! = 26
Solution:
2! = 2 x 1 = 2
4! = 4 x 3 x 2 x 1 = 24
2 + 24 = 26
c. 2! x 3! = 12
Solution:
2! = 2 x 1 = 2
3! = 3 x 2 x 1 = 6
2 x 6 = 12
d. 7! - 3! = 5034
Solution:
7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040
3! = 3 x 2 x 1 = 6
5040 - 6 = 5034
e. 6! X 4! = 17280
Solution:
6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
4! = 4 x 3 x 2 x 1 = 24
720 x 24 = 17280
Reviewing your answers, we have:
a. 120
b. 26
c. 12
d. 5034
e. 17280
