The notation $\left( \frac { \mathbf { n } } { \mathrm { r } } \right) \text { means } \left( \frac { \mathrm { n } ! } { \mathrm { r } ! ( \mathrm { n } - \mathrm { r } ) ! } \right) \text {. Evaluate the expression. }$
-$\left( \begin{array} { l } 7 \ 0 \end{array} \right)$
A) 5040
B) 2
C) 0
D) 1

Question

Quizplus · Accepted Answer

The expression $\left( \frac { 7 } { 0 } \right)$ simplifies to $\frac{7!}{0!(7-0)!}$, which equals $\frac{7!}{1*7!} = 1$, because $0! = 1$ by definition.

The Notation - (70)\left( \begin{array} { l } 7 \\ 0 \end{array} \right)(70​)

The Notation - $\left( \begin{array} { l } 7 \\ 0 \end{array} \right)$