Mathematics
Senior High
Resolved
マーカー部分の計算方法が分かりません。どうやったら2になるんでしょうか、、？
(3) log315=log3(3x5)=log33+log35=1+log35
log:15
log$15=
log53=
より、
1+log,5
=
1
log35
log35 log35
log33 1
=
log35 log35
log315 Xlog515-(log35+log53)
+1
(配(1+10g35)
1
log35
+1)-(10g:5+
1
log35
1
log35
+1+1+log35)-(log35+ =2
1
log:5
423
1
195
Answers
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ありがとうございます