Question

Evaluate. 9!/6!4!

14
21
42

Answer 1

\[\frac{9!}{6!4!}\]
We know that
\[n!=n.(n-1)!\]
\[\frac{9.8.7.6!}{6!4!}\]
Can you solve now?

Answer 2

\[\Large \frac{(9)(8)(7)(6)(5)(4)(3)(2)(1)}{(6)(5)(4)(3)(2)(1) \times (4)(3)(2)(1)}\]

cancel all that an be

Answer 3

can be*

Answer 4

21 ;) thanks