Mathematics
Senior High
Resolved
マーカーで囲った部分が分かりません💦
なぜ3と-1が5に変形するのですか?
誰か教えてください🙇♂️
+Σbk
= 3+234-1
1-(3-¹-1)
=3+
2-1
=3+1/12 (3-1-1)
(3-1+5)
an = a₁ +
2
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