document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1177770>Question 1177770</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given sin β = 5/13 in QII, and (6,-8) is on the terminal side of α, find the exact value of sin(α + β) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #806995 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=806995\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Draw a sketch showing angle β using a triangle in standard position in quadrant II with y=5 and hypotenuse 13, and showing angle α with a triangle in standard position with x=6 and y=-8.<br><BR>\n" );
document.write( "Use your sketch and the Pythagorean Theorem to find the sine and cosine of both angles; then use sin(x+y) = sin(x)cos(y)+cos(x)sin(y)<br><BR>\n" );
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