Mathematics
Senior High
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対数関数の問題です。
なぜ最後のlogの部分で底数が揃ってないのに、かけると1になるのですか。

341 次の計算をせよ。 (1) (logs25+log95) (log59+log253)
(1) (log325+ log95) (logs 9+ log 25 3) logs5(logs 3²+ 3 logs 3 log39 log, 25 5 ( = log35² + = (21 2 log₁5+ || 5 2 loga5) (2 logs 3+ logs 3) 35 25 log.5-log.3 = 2log 5-log: 3 4 25 4

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✨ Best Answer ✨

底を小文字真数を大文字で表す
logaB×logbA=logaB×1/logaB←底の変換公式

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