Mathematics
Undergraduate
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ここの計算のやり方をくわしく教えて欲しいです
Pk+1
PR
100! 599-2
(99-k)!
(k+1)!
X
100-k
5(k+1)-
Extistie
k! (100-k)!
100! ・5100-k
Preti 100/
Darl
*99-10
Answers
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わかりやすい説明ありがとうございました(т-т)
やっと理解出来ました!