Mathematics
Senior High
3個目のイコールの、2個目のカッコで+1になっている理由を教えてください🙇♀️🙏
(4) log210·1og510-(log25+1og52)
の式を a, bで表せ。
125
ol8
(4) 与式
(10og,5 +
log2
log25
log210
=log210-
log25
=(log22+1og25).
log22 + log25
log25
1
-log25-
log,5
1
=(1+log,5)
1
+1)-log,5 -
log,5
log,5
1
log.5 +1+1+log25 -log,5 -
log,5
1
S+
Answers
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