Mathematics
Senior High
Resolved
この問題でなぜαとして計算するのか分かりません。教えて欲しいです。
[2) Ane = pan +h里
Ants
5a,=l
Tantl
てanニうaの一4
= 3d -4
-2d--4
d=2
antie 3an-4
22 =32ー4
Aati2-3(an-2)
{an-231は初後の-2ニ-1,53の等に故す」
an-2=-1-3"
an=2-301
Answers
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