Chapter 2, Problem 48E

To determine

(a)

To calculate:

The value of $\frac{12!}{2!}$.

To determine

(b)

To calculate:

The value of $12!/2!10!$.

To determine

(c)

To calculate:

The value of $\frac{12!}{3!9!}$.

To determine

(d)

To calculate:

The value of $\frac{12!}{4!8!}$.