Mathematics
Senior High
黄色いところはなぜn-1ではないんですか?
092
1 k
267 (-3)*
n-1
Σ
k=0
57 (1)
(1)
k=0
=1+(-1/2)+(-1/2)+..+(-1/3)
1\")
3
1.
T
-=-2 (¹-(- - -)"}
n-1
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