Mathematics
Senior High
Resolved
対数関数の方程式についてです。
(3)の解き方を教えてください。
(過去の質問にも答えてくださる方募集中)
;次の方程式を解け。
(1) log,(r -1) + log,(z -7) =D2
(2) log。(r° + 6r-7) - log。(z - 1) = 2
(3) 2log。(r+2) - log, r = 2log。3
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