document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=43240>Question 43240</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1/R= 1/R1 + 1/R2  SOLVE THE EQUATION FOR R1 IN TERMS OF R AND R2.\r<BR>\n" );
document.write( "\n" );
document.write( "i KNOW the first step is to isolate 1/r1\r<BR>\n" );
document.write( "\n" );
document.write( "1/r-1/r2=1/r1 \r<BR>\n" );
document.write( "\n" );
document.write( "my guess is r1=  (r-r2)/r*r2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #28270 by </B><A HREF=/tutors/aboutme.mpl?userid=psbhowmick><B>psbhowmick(878)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=psbhowmick><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=psbhowmick><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=28270\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Yes the first step is correct.<BR>\n" );
document.write( "Then, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fr+-+1%2Fr%5B2%5D=1%2Fr%5B1%5D ALIGN=MIDDLE  ALT=\"1%2Fr+-+1%2Fr%5B2%5D=1%2Fr%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r%5B2%5D+-+r%29%2F%28r%2Ar%5B2%5D%29=1%2Fr%5B1%5D ALIGN=MIDDLE  ALT=\"%28r%5B2%5D+-+r%29%2F%28r%2Ar%5B2%5D%29=1%2Fr%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B1%5D+=+r%2Ar%5B2%5D%2F%28r%5B2%5D+-+r%29 ALIGN=MIDDLE  ALT=\"r%5B1%5D+=+r%2Ar%5B2%5D%2F%28r%5B2%5D+-+r%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );