document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=618085>Question 618085</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evaluate the logarithm without using a calculator.\r<BR>\n" );
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document.write( "log1/3 81\r<BR>\n" );
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document.write( "What I tried so far was setting it equal to x.<BR>\n" );
document.write( "Then I ended up with:<BR>\n" );
document.write( "1/3^x = 81\r<BR>\n" );
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document.write( "I'm not sure if this is the correct way to do it or not. If it is what do I do next, if it is not then HELP please. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #388687 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=388687\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "Yep, that is <i>exactly</i> what you need to do.  Now, recognize that 81 is 9 times 9 and 9 is 3 times 3, so 81 has to be 3 to the 4th.\r<BR>\n" );
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document.write( "But the 3 is in the denominator of the fraction 1/3.  Now what?  How about a negative exponent?\r<BR>\n" );
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document.write( "Check out the value of <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \left(\frac{1}{3}\right)^{-4}\"> on your calculator.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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