document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104763>Question 1104763</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If sin(theta) equals 21/29 and is in quadrant 1, what is the value of tan2(theta)?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719455 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719455\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "If the angle is in quadrant 1 and sin(theta)=21/29, then cos(theta) = 20/29:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sinx%5E2%2Bcosx%5E2+=+1 ALIGN=MIDDLE  ALT=\"sinx%5E2%2Bcosx%5E2+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=441%2F841%2Bcosx%5E2+=+1 ALIGN=MIDDLE  ALT=\"441%2F841%2Bcosx%5E2+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cosx%5E2+=+400%2F841 ALIGN=MIDDLE  ALT=\"cosx%5E2+=+400%2F841\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cosx+=+2.0%2F29 ALIGN=MIDDLE  ALT=\"cosx+=+2.0%2F29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Then tan(theta) is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2821%2F29%29%2F%2820%2F29%29+=+21%2F20 ALIGN=MIDDLE  ALT=\"%2821%2F29%29%2F%2820%2F29%29+=+21%2F20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Beyond that I can't help you, because I can't tell whether \"tan2(theta)\" means <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=tan%282%2Atheta%29 ALIGN=MIDDLE  ALT=\"tan%282%2Atheta%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28tan%28theta%29%29%5E2 ALIGN=MIDDLE  ALT=\"%28tan%28theta%29%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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