Mathematics
Senior High
Solved
1番下の段は、どのように計算すればいいのか教えて欲しいです🙇♀️
(S)+
+(10-13)+
+......+.
=
= (1
1
-
n
1
1/であるから
33n-23n+1,
S-1
3n+1 3n+1であ
(-1)+(1/1)+(1-1)=s
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