推 xxxx :老闆都不懂.. ( ′-`)y-～
→ ooooooooo :這裡禁煙喔XDDDD
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推 hunter0904:這兩題講義裡面都有類似的 如果你沒補習我再回你 02/27 23:51
3. Find the coefficient of x^72 in (x^6 + X^7 + X^8 + ...)^10
4. Let A be a set with |A| = n, and let R be a binary
relation on A that is reflexive and antisymmetric.
(a) What is the maximum value for |R|
(b) How many antisymmetric relations can have this size?
有請各位高手了
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