Question

how does the factorial of 0 is 1 ??​

Answer 1

Answer:

The definition of Zero factorial

This still counts as one way of arranging it ,

so by definition, a zero factorial = one , Just as 1!

is equal to one because there is only a single

possible arrangement of this data set .

Answer 2

Step-by-step explanation:

because there is only a single possible arrangment of the data set.