document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=733015>Question 733015</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sinx+tanx/1+secx=2cos^2x\r<BR>\n" );
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document.write( "Im having trouble solving this one. Help would be greatly appreciated. Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #448196 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=448196\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sinx+tanx/1+secx=2cos^2x <BR>\n" );
document.write( "Im having trouble solving this one. Help would be greatly appreciated. Thanks.<BR>\n" );
document.write( "***<BR>\n" );
document.write( "Sinx+tanx/1+secx=2cos^2x<BR>\n" );
document.write( "[(sinx+(sinx/cosx)]/[(1+(1/cosx)]=2(1-sin^2x)<BR>\n" );
document.write( "((cosxsinx+sinx)/cos)/((cosx+1)/cosx)=2-2sin^2x<BR>\n" );
document.write( "((sinx(1+cosx)/(cosx+1)=2-2sin^2x<BR>\n" );
document.write( "sinx=2-2sin^2x<BR>\n" );
document.write( "2sin^2x+sinx-2=0<BR>\n" );
document.write( "solve for sinx using quadratic formula:<BR>\n" );
document.write( "a=2, b=1,c=-2<BR>\n" );
document.write( "sinx=[-1±&#8730;(1-4*2*-2)]/2*2=-1±&#8730;17/4<BR>\n" );
document.write( "sinx=(-1+&#8730;17)/4&#8776;0.781<BR>\n" );
document.write( "x&#8776;51.35º<BR>\n" );
document.write( "or<BR>\n" );
document.write( "sinx&#8776;-1.281(reject, (-1 < sinx < 1) </SPAN>\n" );
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