document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=911647>Question 911647</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If alpha and beta are acute angles such that csc alpha = 17/15 and cot beta = 5/12, find the following.\r<BR>\n" );
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document.write( "(a)    sin(alpha + beta)\r<BR>\n" );
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document.write( "(b)    tan(alpha + beta) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #553244 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=553244\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sin x = 15/17 , cos x = 8/17, tan x = 15/8<BR>\n" );
document.write( "tan y = 12/5, sin y = 12/13, cos y = 5/13<BR>\n" );
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document.write( "a)&#61613;sin(x + y) = sin x cosy  +  cos x sin y&#61623;<BR>\n" );
document.write( "b. tan(x ± y) =  (tan x + tan y)/(1- tan x tan y) </SPAN>\n" );
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