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Clearnote
Q&A
Senior High
Mathematics
5のn乗+2になぜなるかわかりません 教え...
Mathematics
Senior High
over 3 yearsago
まお
5のn乗+2になぜなるかわかりません
教えてください🙏🏻🙏🏻
初項 5, 公比 5, 項数n+1の等比数 5(5″+1−1)_5"+2−5 n+1 Σ 5* = k=1 5-1 4
Answers
Rei
over 3 yearsago
5×5^n+1=5^n+2です
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