Mathematics
Senior High
数列の一般項を求める問題です。
オレンジの並線のところがなんでこのようになるのか分かりません。教えてください🙇🏻
(4) a₁=1, an+1=4an+1
X=4211
-3x=1
X=- 17/3/
Antit = 1/2 = 4 (ant = 3 )
bn= ant trake.
(Daar = Anti + 5 )
f
bute = 4 bm₁ b₁ = =
On = 4
14h1
= 1/4"
An= On = 1/² 2 11
An = 1/3.4" - 11/12 = 1/21 (4²²)
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