document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957445>Question 957445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If f(x)=(x-1)/(x+1), evaluate f^-1((1/c)+1). <BR>\n" );
document.write( "hopefully you'll understand that, thank you for your time </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585063 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=585063\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If f(x)=(x-1)/(x+1), evaluate f^-1((1/c)+1<BR>\n" );
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document.write( "1st: Find f^-1(x):::<BR>\n" );
document.write( "y = (x-1)/(x+1)<BR>\n" );
document.write( "Interchange x and y to get:<BR>\n" );
document.write( "x = (y-1)/(y+1)<BR>\n" );
document.write( "Solve for y::<BR>\n" );
document.write( "y-1 = x(y+1)<BR>\n" );
document.write( "y-xy = x+1<BR>\n" );
document.write( "y(1-x) = x+1<BR>\n" );
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document.write( "f^-1(x) = (x+1)/(1-x)<BR>\n" );
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document.write( "NOw, find f^-1[(1/c)+1)]<BR>\n" );
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document.write( "f^-1[(1/c)+1)] = [(1/c)+2][-1/c]<BR>\n" );
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document.write( "= (-1/c^2) -(2/c)<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============== </SPAN>\n" );
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