Question

Find the value of 10!/(10-2)!

A) 720
B)80
C)90
D)45

Answer 1

`\huge \boxed{90}`

Explanation:

First thing you do is subtract.

10-2=8

`\displaystyle (10!)/(8!)`

Then you cancel the factorials.

`\displaystyle (10!)/(8)=10*9`

Multiply numbers from left to right to find the answer.

`\displaystyle 10*9=90`

`\huge \textnormal{90}`, which is our answer.

Hope this helps!