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Mathematics 16 Online
OpenStudy (anonymous):

Evaluate (4!)(5!)

jimthompson5910 (jim_thompson5910):

from earlier 5! = 5*4*3*2*1 and 4! = 4*3*2*1

OpenStudy (rainbow_dash):

factorials are the number times all the numbers below it. so in this case it will be 4x3x2x1 which is 24, multiplied by the factorial of 5, which is 5x4x3x2x1, which is 144.

jimthompson5910 (jim_thompson5910):

it should be 120 instead of 144 rainbow_dash

jimthompson5910 (jim_thompson5910):

but you have the right idea

OpenStudy (rainbow_dash):

oh my bad. yeah you're right

OpenStudy (anonymous):

thanks for explaining!!!!

OpenStudy (rainbow_dash):

not a problem, hope we helped.

OpenStudy (anonymous):

You did!!!!

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