Mathematics
Senior High
どうやったら、3n+1分のnになりますか?
解き方を教えてくださいm(_ _)m
1
31+1
3n+1
212 (1) S
1
1
3(1
7
3(7
10
1
1
1
3(3n -2
3n+1
1
7
10
1
1
3n-2
3n+1
1
n
3n+1
3n+1
n
次の和Sを求めよ。
1
1
1
1
) S=
1-4'
4.7'
7.10
10-13
(3n-2(3+1)
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