document.write( "Question 348525: evaluate without using a calculators or tables\r
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Algebra.Com's Answer #249261 by jsmallt9(3758)\"\" \"About 
You can put this solution on YOUR website!
I assume the problem is:
\n" ); document.write( "\"log%280.7%2C+%281%29%29\"
\n" ); document.write( "If so, this is called the \"base 0.7 logarithm of 1\"

\n" ); document.write( "To find this logarithm without calculators or tables, you have to understand what logarithms are. In short, logarithms are exponents. Specifically, \"log%280.7%2C+%281%29%29\" represents the exponent for 0.7 that results in 1. So we have to ask ourselves: \"What power of 0.7 is 1?\". With some thought and with some understanding of how a certain exponent works, we can answer this question. The exponent for 0.7 (or for any non-zero number for that matter) that results in a 1 is ... Zero! Any number (except zero itself) raised to the zero power is 1! So:
\n" ); document.write( "\"log%280.7%2C+%281%29%29+=+0\"

\n" ); document.write( "In fact
\n" ); document.write( "\"log%28a%2C+%281%29%29+=+0\"
\n" ); document.write( "for any positive number!\r
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