Question

Find the value of the combination.

21 C 3

7,980
2,660
1,330

Answer 1

To evaluate the combination we proceed as follows:
21C3
Given nCk we shall have:
n!/[(n-k)!k!]
thus plugging the values in the expression we get:
21!/[(21-3)!3!]
=21!/(18!×3!)
=1330
Answer: 1330

Answer 2

Answer:

1,330

Step-by-step explanation: