Mathematics
Senior High
どうしたらそうなるのですか?
教えてください🙇♀️
2 (1H)
, an+1=2am+4n-7
3
ai=
(2) an+1+4(n+1)-3=2(an+4n-3)より, 数列
{an+4n-3} は公比2の等比数列で,
an+4n-3=(a」+1)·2"-1
19
2n-1
-4n+3.
3
.. an
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出来ました!
ありがとうございます!!