document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=74179>Question 74179</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please explain why the number 1 cannot be the base of a logarithmic function. Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #53321 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=53321\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Because if you use the change of base formula<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log_%5Bb%5D%28a%29=log%28a%29%2Flog%28b%29 ALIGN=MIDDLE  ALT=\"log_%5Bb%5D%28a%29=log%28a%29%2Flog%28b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >If you let b=1, you get<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log_%5B1%5D%28a%29=log%28a%29%2Flog%281%29 ALIGN=MIDDLE  ALT=\"log_%5B1%5D%28a%29=log%28a%29%2Flog%281%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Log(1)=0 since x^0=1 so it becomes<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log_%5B1%5D%28a%29=log%28a%29%2F0 ALIGN=MIDDLE  ALT=\"log_%5B1%5D%28a%29=log%28a%29%2F0\"   DISABLED_style= \"max-width:90%; height:auto;\" >Which is not possible for any value of a. </SPAN>\n" );
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