2007-05-12 02:03:58 · 9 answers · asked by lydia s 1 in Science & Mathematics ➔ Mathematics
a factorial takes a number and multiplies it down to 1, decreasing by 1 each time, so,
8! = 8*7*6*5*4*3*2*1
4! = 4*3*2*1
8!/4! = (8*7*6*5*4*3*2*1) / (4*3*2*1)
the 4*3*2*1 cancels out
so it becomes 8*7*6*5 = 1680
2007-05-12 04:42:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
2
2007-05-12 02:06:19 · answer #2 · answered by Anonymous · 0⤊ 2⤋
8! = 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1
4! = 4 x 3 x 2 x 1
8!/4! = 8x7x6x5x4x3x2x1/4x3x2x1 =
8x7x6x5 = 1,680 ==> the answer
2007-05-12 02:18:47 · answer #3 · answered by detektibgapo 5 · 0⤊ 0⤋
4! cancels out top and bottom.
This leaves 8 x 7 x 6 x 5 = 1680
2007-05-12 11:06:49 · answer #4 · answered by Como 7 · 0⤊ 0⤋
(1*2*3*4*5*6*7*8)/(1*2*3*4) = 1680
2007-05-12 02:07:49 · answer #5 · answered by Simon P 1 · 0⤊ 0⤋
8!/4!
8*7*6*5*4!/4!
1680
2007-05-12 02:09:21 · answer #6 · answered by Fastian04 2 · 0⤊ 0⤋
of 8!/4!=8.7.6.5=1680. answer
2007-05-12 02:21:17 · answer #7 · answered by Anonymous · 0⤊ 0⤋
2!!
2007-05-12 02:06:15 · answer #8 · answered by bradxschuman 6 · 0⤊ 2⤋
google it...
http://www.google.com
2007-05-12 02:06:33 · answer #9 · answered by james 5 · 0⤊ 2⤋