document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=834108>Question 834108</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the trigonometric function value of angle(delta).\r<BR>\n" );
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document.write( "cos(delta)=8/9, with (delta) in quadrant IV. Find sin(delta) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #502924 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=502924\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Find the trigonometric function value of angle(delta). <BR>\n" );
document.write( "cos(delta)=8/9, with (delta) in quadrant IV. Find sin(delta)<BR>\n" );
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document.write( "If delta is in QIV, x is positive and y is negative.<BR>\n" );
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document.write( "cos = x/r<BR>\n" );
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document.write( "Since cos = 8/9, x = 8 and r = 9<BR>\n" );
document.write( "Then y = -sqrt[9^2-8^2] = -sqrt(17)<BR>\n" );
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document.write( "sin(delta) = y/r = -sqrt(17)/9<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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