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log以35為底9的對數 =log35 9 =1/(log9 35) =1/[log9(5x7)] =1/(log9 5 + log 9 7) =1/(a+b) 【數學的快樂】團隊為您解答!祝您學習進步 不明白可以追問! 滿意請點擊下麵的【選為滿意回答】按鈕,O(∩_∩)O謝謝
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