document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=850532>Question 850532</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a and b are quadrant I angles wieth cos (a) 15/17 and csc(b)=41/9. find tan(a+b)\r<BR>\n" );
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document.write( "A  455/528   B 37/120  c 91/120  d. 185/672 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #512240 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=512240\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a and b are quadrant I angles with <BR>\n" );
document.write( "cos (a) 15/17)<BR>\n" );
document.write( "sin(a) = sqrt(17^2-15^2)/17 = 8/17<BR>\n" );
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document.write( "and csc(b)=41/9<BR>\n" );
document.write( "sin(b) = 9/41<BR>\n" );
document.write( "cos(b = = sqrt(41^2-9^2)/41 = 40/41<BR>\n" );
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document.write( "find tan(a+b) = [tan(a)+tan(b)]/[1-tan(a)tan(b)] <BR>\n" );
document.write( "= [(8/15)+(9/40)]/[1-(8/15)(9/40)] = 455/528<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=================== <BR>\n" );
document.write( "A 455/528 B 37/120 c 91/120 d. 185/672<BR>\n" );
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