Mathematics
Senior High
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数列です。矢印の部分の式変形教えてください😭
よって、数列{po-1/2 は公比 12 の等比数列
で、か=1
より初は
P₁
11/21-1-1/2-1/4
したがって
G
1/2=1/14(-1/2)"
すなわち = 1/2 + 1/4
(-7)(-1)
=/12/12-(-1)
n-1
n
37
問題の考え方■■
塩化
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