Question

What is the value of ${}^n{P}_0$?

• A. 0
• B. 1
• C. $\infty$
• D. $\frac{1}{2}$

Answer 1

Answer: (B)

${}^n{P}_0=\frac{n!}{\left(n-0\right)!}=\frac{n!}{n!}=1$