Mathematics
Senior High
【途中計算】くくって変形できそうなのですが、答えがここまでしか書いてなくて、何故変形しなくていいのでしょうか?
1-) ( ^_h) (²₂ (1-x)
1-X
1-X" -hX² + n(n+1
-hich f
T-XX
1-X-11-
1- )^^ (1+h) + h)(h+1.
xnx
T
hx xx Tu CG₂7
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変形できそう
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