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Mathematics 8 Online
OpenStudy (anonymous):

Evaluate 3! + 4!.

jimthompson5910 (jim_thompson5910):

Are you able to evaluate 3! or 4!

OpenStudy (anonymous):

yes

jimthompson5910 (jim_thompson5910):

what is 3!

OpenStudy (anonymous):

do your know how to slove >?

jimthompson5910 (jim_thompson5910):

3! means 3 factorial

OpenStudy (anonymous):

Evaluate 3! + 4!. 30 144 5,040

jimthompson5910 (jim_thompson5910):

n! = n*(n-1)*(n-2)*...*(3)*(2)*(1) you start at n and you multiply it with every integer smaller than it (until you reach 1)

jimthompson5910 (jim_thompson5910):

example 7! = 7*6*5*4*3*2*1

jimthompson5910 (jim_thompson5910):

another example 11! = 11*10*9*8*7*6*5*4*3*2*1

OpenStudy (mathmale):

So, @khulu.reh, please write out 3!. Hint: This is included in both of Jim's examples! Please write out 4! Now add 3! and 4! together. At least please show us what you're thinking.

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