→ lubu: 感覺互斥事件那邊描述好像有少了甚麼 11/04 16:52
Expand all terms of the form (a+b)^k and
obtain an expression that involves the
multinomial coefficient for M=3 mutually
exclusive events ,A1,A2,A3.
想問一下這題的題目想問什麼，有點看不懂.
謝謝～
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