All High School Math Resources
Example Questions
Example Question #1 : Factorials
What is the value of ?
Possible Answers:
24
12
6
4
10
Correct answer:
24
Explanation:
! is the symbol for factorial, which means the product of the whole numbers less than the given number.
Thus, .
Example Question #1 : Factorials
What is the value of ?
Possible Answers:
Correct answer:
Explanation:
By definition, .
Example Question #1 : Factorials
Find the value of:
Possible Answers:
Correct answer:
Explanation:
The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So, can also be written as:
To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:
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