Question

Which of the following is equal to C(10, 3)?

a. C(3, 10)
b. C(10, 7)
c. P(10, 3)

Answer 1

the relation between combination and permutation is
ⁿPr = (r!) · ⁿCr
i hope you could do so

Answer 2

\[C(10,3) \implies \frac{10!}{3! (10-3)!}\]
does that help?

Answer 3

thats P(10,3)

Answer 4

remember nCr = nC(n-r)
what is n-r?

Answer 5

See how the graph is symmetrical about x = 5? this is where x! = (10 - x)!

Answer 6

omg Mac :P nice

Answer 7

@apple_pi

Answer 8

Mac ftw!