Mathematics
Senior High
(2)を教えてください🙇🏻♀️
544*数列1, 3, 9, 21, 41, 71, 113, 169,
を{an} とおく。
(1) {an} の階差数列を{b»}, {bn} の階差数列を {cn} とおく。{cn} の
Pick up
160
一般項を求めよ。
一(2) {an}の一般項を求めよ。
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