Mathematics
Senior High
シグマの和の計算です
途中式の意味を教えてください🙏
k=1
=n(n³+2n²+n-1)
= n{n(n²+2n+1)-1}
- * (I + u}u ²/ } v =
- n
k=1
k=1
13-43t =(1-¾v) 3 (7)
n
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