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50
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avatar+71 

what is it, and how do I calculate a symbol like this:

two parentheses ()

and in it is a fraction without the bar

like this: (8) except the parentheses goal the way down. Remember, there isn't the fraction bar.

               3

 Apr 12, 2020
 #1
avatar+21004 
+2

I think that you mean a combination, that is evaluated as:  8! / ( 3! · 5! )  =  56

 Apr 12, 2020

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