2020 July(C01) Math Question 57

Probability

- Factorials

57. The expression n! (read as n factorial) is defined as the product of all positive integers up to and including n, whenever n is a positive integer. For example.
4!=1·2·3:4. Whenever n is a positive integer which of the following is equivalent to-m31?

Choice A

You are not logged in

Log In | Sign Upand pay $59 now