Mathematics
Senior High
Solved
これの解き方を教えてください💦特に、α=3α−2 らへんがわかりません、
(¹)
a₁ = 2
an+1=3an-2
(
α=30-2を解くと
-20=-2
α=1
よって①は
71
Ant ₁²²^1 = 3 (an-1)
bn=an−1 とおくと
anal = Pan &
J
-) α = pα + &
Anel -α = P(an -α)
>
Sh₁₁ = a₁-1=1
line 3 lan
:- hn=1.3^²1
= 3^-1
~an-1= 3^²1
2² An = 3^~² + 1
(答)
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