Question

Simplify 5!/3!

Answer 1

(5x4x3x2x1) / (3x2x1) = 5x4 = 20

Answer 2

\[5! = 5 \times 4 \times 3 \times 2 \times 1\]
\[3! = 3 \times 2 \times 1\]

Answer 3

thanks

Answer 4

In general:

\[n! = n \times (n-1) \times (n -2) \times (n - 3) ... 3 \times 2 \times 1\]

Answer 5

\[n! = \prod_{k=1}^{n}k\]

Answer 6

120