document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=652320>Question 652320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find sin theta if cos theta = 5/13 and theta terminates in QI </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #407953 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=407953\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find sin theta if cos theta = 5/13 and theta terminates in QI<BR>\n" );
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document.write( "cos = x/r, so x = 5 and r = 13<BR>\n" );
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document.write( "Solve for \"y\":<BR>\n" );
document.write( "y^2 = r^2-x^2<BR>\n" );
document.write( "y = sqrt[13^2-5^2) = sqrt[169-25] = sqrt(144) = 12<BR>\n" );
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document.write( "Ans: sin = y/r = 12/13<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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