Question

Simplify.
C
17 4
A. 2,380

B. 680

C. 57,120

D. 4,760

Answer 1

What are you simplifying?

Answer 2

C
17 4

Answer 3

I dont know how to do this at all

Answer 4

mohammad.arqum can you help me

Answer 5

You realize that they way it is, it's amorphous?

Answer 6

??????????????????

Answer 7

\[_{17}C_{4}=\frac{17!}{4!(17-4)!}\]

Answer 8

\(_nC_r = \dfrac{n!}{r!(n - r)!} \)

\(_{17}C_4 = \dfrac{17!}{4!(17 - 4)!} = \dfrac{17!}{4!(17 - 4)! }= \dfrac{17!}{4! 13!} = \)

\(= \dfrac{17 \times 16 \times 15 \times 14 \times \cancel{13!}}{4 \times 3 \times 2 \times \cancel{13!} } \)