document.write( "Question 1010135: If I'm given 729 = 3^?,
\n" ); document.write( "Is there an easy way to calculate what the exponent is without dividing backwards?
\n" ); document.write( "How to punch in to a calculator...
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Algebra.Com's Answer #625625 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "If I'm given 729 = 3^?,
\n" ); document.write( "Is there an easy way to calculate what the exponent is without dividing backwards?
\n" ); document.write( "How to punch in to a calculator...
\n" ); document.write( "
Let exponent be a
\n" ); document.write( "Then we get: \"729+=+3%5Ea\"
\n" ); document.write( "One way is to convert to logs, as follows:
\n" ); document.write( "\"a+=+log+%283%2C+729%29\"
\n" ); document.write( "\"a+=+log%28729%29%2Flog%283%29\" ------ Applying change of base
\n" ); document.write( "Punching that in the calculator will give: \"highlight_green%28a+=+6%29\", the exponent \n" ); document.write( "
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