Mathematics
Senior High
この部分の式変形が分かりません
2
1
= 4 {n(n+1)})² + 4. — — n(n + 1 x2n+1)
したがって、
-1)-3(-1))
=
1
16
1
-3.n(n+1)
E-NA):
E
n(n+1)(6n(n+1)+4(2n+1)-9)
18
014
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