Mathematics
Senior High
Resolved
どこが間違っているのかがわかりません。
(1)
dx
Sa
7-9x
t=7-9xとおくと、
9x=7-t
dan't
X =
9
= -1
dz
dt
dx=-dt
2-
S
LT261", 2₁
dx
9-9X
=-çat
セ
== /og/t/ + c
= -log/7-9x/+c
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ほんとですね、間違ってました。ありがとうございます!