## anonymous 5 years ago simplify 6!

1. Yuki

it's already simplified, but to evaluate it

2. anonymous

6x5x4x3x2x1

3. Yuki

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

4. Yuki

720

5. anonymous

720

6. amistre64

1 1 2 6 24 120 5! 720 5040

7. Yuki

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

8. anonymous

720?

9. amistre64

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

10. anonymous

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

11. Yuki

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

12. Yuki

yes

13. amistre64

i got it to 10 using mneumonimns

14. Yuki

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

15. amistre64

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

16. Yuki

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

17. Yuki

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