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Factorial
01
階乗
the product of all positive whole numbers from 1 to a given number
Example
The formula for combinations includes the factorial of the number of items.
The factorial of 5 is calculated as 5!=5×4×3×2×1=120.
Factorials are essential in the binomial theorem for expanding expressions.
factorial
01
階乗
multiplying a whole number by all the smaller whole numbers down to 1
Example
In probability theory, factorial calculations often appear in permutations and combinations.
Factorial expressions are commonly encountered in algorithms and programming, particularly in recursion.
Factorial notation is utilized to represent the number of ways objects can be arranged.
例
The formula for combinations includes the factorial of the number of items.
The factorial of 5 is calculated as 5!=5×4×3×2×1=120.
Factorials are essential in the binomial theorem for expanding expressions.
To solve the problem, you need to find the factorial of 7.
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