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OpenStudy (damriver74):
6!*8! ---- 7!*4!
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Vocaloid (vocaloid):
any ideas?
OpenStudy (damriver74):
8 240 480 and 12 over 7
Vocaloid (vocaloid):
you can rewrite a larger factorial as a product of a smaller factorial
Vocaloid (vocaloid):
so 7! = 7 * 6! and 8! = 8 * 7 * 6 * 5 * 4!
Vocaloid (vocaloid):
know where to go from here?
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OpenStudy (damriver74):
not really :(
Vocaloid (vocaloid):
let's go back to our original problem and do the substitutions I made
Vocaloid (vocaloid):
|dw:1465231631032:dw|
Vocaloid (vocaloid):
do you see anything you can cross out in the numerator and denominator?
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