Mathematics
Senior High
Solved
階差数列についてです。2つともわからないので、できれば2つとも丁寧な解法を教えてください。
次の数列の一般項を求めよ。
(1) 2, 7, 14, 23, 34, 47,
(2) 1,4, 13, 40, 121, 364,
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