Mathematics
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数B階差数列です
真ん中の式からなぜ1番下の式になるのかが理解できません!
よろしくお願いします
=3"-3n-1
=3×3n-¹-3n-1
=2×3²-¹
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数B階差数列です
真ん中の式からなぜ1番下の式になるのかが理解できません!
よろしくお願いします
Users viewing this question
are also looking at these questions 😉