Mathematics
Senior High
Resolved
2行目から3行目ってどうなってるか解説お願いします🙇
(2) y=(log 39-log 3x) (log 3x-log33)
= (2-log3x) (log3x-1) 4
+
1
? <r<27 th 1≤t≤3
2
=-(log 3x)² +3log 3x-2
2 2
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