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数列 a_(n+1) = a_n^2 - 2 で a_1 = 3 が爆発する(無限大に行く)ことを示せ。
数列 a_(n+1) = a_n^2 - 2 で a_1 = 3 が爆発する(無限大に行く)ことを示せ。
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