log底數8 X^2/Log底數2 X
步驟
log底數
2011-01-04 10:34 pm
回答 (1)
2011-01-04 10:45 pm
✔ 最佳答案
log (base 8) x² / log (base 2) x= (log x² / log 8) / (log x / log 2)= (log x² / log x) (log 2 / log 8)= (2 log x / log x) (log 2 / log 2³)= 2 (log 2 / 3log2)= 2/3
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