R****D 发帖数: 1152 | 1 involving the number of ways of selecting
n items. For what values of n will the number of ways of selecting n items
from 52 exceed the number of ways of selecting 11 items from a set of 90?
All values of n from( ) through( ),inclusive.
怎么算啊? |
p*****k 发帖数: 318 | 2 18 - 34
btw i dont need baozi... |
R****D 发帖数: 1152 | 3
请解释下 答案是对的
【在 p*****k 的大作中提到】 : 18 - 34 : btw i dont need baozi...
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a**m 发帖数: 102 | 4 用计算器试?
【在 R****D 的大作中提到】 : : 请解释下 答案是对的
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R******n 发帖数: 522 | 5 52!/(52-n)!/n!>90!/79!/11!
【在 R****D 的大作中提到】 : involving the number of ways of selecting : n items. For what values of n will the number of ways of selecting n items : from 52 exceed the number of ways of selecting 11 items from a set of 90? : All values of n from( ) through( ),inclusive. : 怎么算啊?
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