document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=293364>Question 293364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hoe to find the exact value of cos(arcsin(-1/2) + arctan(2/3))= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211826 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=211826\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how to find the exact value of cos(arcsin(-1/2) + arctan(2/3))<BR>\n" );
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document.write( "Form: cos(a+b) = cos(a)*cos(b)-sin(a)*sin(b)<BR>\n" );
document.write( "Your \"a\" is arcsin(-1/2) = -30 degrees<BR>\n" );
document.write( "Your \"b\" is arctan(2/3) = 33.69 degrees<BR>\n" );
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document.write( "Your Problem:<BR>\n" );
document.write( "= cos(-30)cos(33.69)-sin(-30)sin(33.69)<BR>\n" );
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document.write( "= (sqrt(3)/2)(3/sqrt(13)) - (-1/2)(2/sqrt(13))<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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