[理工] [離散] 99中山資工
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?
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02/27 23:51, , 1F
02/27 23:51, 1F
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