Log 9 (729) = ?, I know what logarithims are but dont quite understand this one

asked Oct 13, 2015 90.3k views

4 votes

Log 9 (729) = ?,
I know what logarithims are but dont quite understand this one

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4 votes

Open up the attachment below...

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2 votes

$log_9729=log_99^3=3\\\\log_ab=c\iff a^c=b\\\\log_9729=3\ because\ 9^3=729$

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