Question

Use the factorial operation to evaluate 9!.

8 + 7 + 6 + 5 + 4 + 3 + 2 + 1

8 x 7 x 6 x 5 x 4 x 3 x 2 x 1

9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1

9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1

Answer 1

When 9! is evaluated, we get 9×8×7×6×5×4×3×2×1.

What is factorial operation?

A factorial operation is a mathematical formula represented by an exclamation mark. (!). This operation is carried out when a whole number is being multiplied by its successive smaller numbers until it gets to 1.

E.g

• n! = n(n-1)(n-2)........(1)

From the question,

We are asked to evaluate 9!

• 9! = 9×8×7×6×5×4×3×2×1

Hence, when 9! is evaluated, we get 9×8×7×6×5×4×3×2×1.

Learn more about factorial operation here : https://brainly.com/question/25966410