Question

what do u mean by 5 will not come up either time and what do you mean by either time.​

Answer 1

Step-by-step explanation:

Mean of 5 : The "!" Symbol in maths means "factorial". And what that really means is the number (in this case) with a number lower than that until you get to 1.

So, 5! Would be 5*4*3*2*1 = 120

Or, for a more general case, x! = x*(x-1)!

For example, 5! Would be 5*4!

Then 5*4*3!

Then 5*4*3*2!

And finally 5*4*3*2*1! And the factorial of 1 is 1 so we end there.