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Mathematics 21 Online
OpenStudy (anonymous):

simplify 6!

OpenStudy (yuki):

it's already simplified, but to evaluate it

OpenStudy (anonymous):

6x5x4x3x2x1

OpenStudy (yuki):

you do 6*5*4*3*2*1

OpenStudy (yuki):

720

OpenStudy (anonymous):

720

OpenStudy (amistre64):

1 1 2 6 24 120 5! 720 5040

OpenStudy (yuki):

all factorials work like that so n! = n*(n-1)*(n-2)*...(3)*(2)*(1)

OpenStudy (anonymous):

720?

OpenStudy (amistre64):

ta ta nee chi near tens guns lasarus rosemines mishunbaby mishunbabss lol

OpenStudy (anonymous):

and what happens when it's 7p0 is that 1?

OpenStudy (yuki):

it's worthwhile memorizing from 0! up to at least 7! you will use it a lot

OpenStudy (yuki):

yes

OpenStudy (amistre64):

i got it to 10 using mneumonimns

OpenStudy (yuki):

because rearranging 7 objects picking out none, there is only one way

OpenStudy (amistre64):

1 1 2 6 24 120 720 5040 40320 362880 3628800 right?

OpenStudy (yuki):

or just using the formula \[_7P_0 = {7! \over (7-0)!} = 1\]

OpenStudy (yuki):

amistre, I was wondering why you only have 11 achievements while you type out so many answers lol

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