document.write( "Question 467474: Please help with this questionThank you\r
\n" ); document.write( "\n" ); document.write( "Explain why the expressions log3(-1) and log1 1 are not defined. \n" ); document.write( "

Algebra.Com's Answer #320764 by robertb(5830) $\"\"$ $\"About$

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$\"log%283%2C+%28-1%29%29\"$ is not defined because if we let $\"log%283%2C+%28-1%29%29+=+w\"$ , then exponentially we would have $\"3%5Ew+=+-1\"$ , BUT the term on the left is always positive, and so equality is impossible.\r
\n" ); document.write( "\n" ); document.write( " $\"log%281%2C+1%29\"$ is undefined because if we let $\"log%281%2C+1%29+=+w\"$ , then exponentially we would have $\"1%5Ew+=+1\"$ , and there would be infinitely many possible answers for w. \n" ); document.write( "

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