document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511104>Question 511104</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I hope you can help me :)<BR>\n" );
document.write( "problem is..\r<BR>\n" );
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document.write( "Find (a) tan(x+y) (b) tan(x-y) through tan x = 7/3,0<x<1/2pi ; tan y= 3/4, 0<x<1/2pi. \r<BR>\n" );
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document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #341999 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=341999\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find <BR>\n" );
document.write( "(a) tan(x+y)<BR>\n" );
document.write( "= [tan(x)+tan(y)]/[1-tan(x)*tan(y)] <BR>\n" );
document.write( "---<BR>\n" );
document.write( "= [7/3 + 3/4]/[1 - (7/3)(3/4)]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= [37/12] / [1 - (7/4)]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= (37/12)/(-3/4)<BR>\n" );
document.write( "--<BR>\n" );
document.write( "= (37/12)*(-4/3) <BR>\n" );
document.write( "= -36/9<BR>\n" );
document.write( "=========================  <BR>\n" );
document.write( "(b) tan(x-y)<BR>\n" );
document.write( "= [tan(x)-tan(y)]/[1+tan(x)*tan(y)] <BR>\n" );
document.write( "---<BR>\n" );
document.write( "= [7/3 - 3/4]/[1 + (7/3)(3/4)]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= [18/12] / [1 + (7/4)]<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= (3/2)/(11/4)<BR>\n" );
document.write( "--<BR>\n" );
document.write( "= (3/2)*(4/11)<BR>\n" );
document.write( "---- <BR>\n" );
document.write( "= 6/11<BR>\n" );
document.write( " <BR>\n" );
document.write( "---\r<BR>\n" );
document.write( "\n" );
document.write( "tan x = 7/3, 0<x<1/2pi ; tan y = 3/4, 0<x<1/2pi <BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );