document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=545976>Question 545976</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The exact value of 6cos(-61pi/6)-2sin(13pi/4) is...\r<BR>\n" );
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document.write( "A. 3squaroot(3)+squaroot(2)\r<BR>\n" );
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document.write( "B. -3+squaroot(2)\r<BR>\n" );
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document.write( "C. -3-squaroot(2)\r<BR>\n" );
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document.write( "D. 3squaroot(3)-squaroot(2) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #356495 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=356495\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The exact value of 6cos(-61pi/6)-2sin(13pi/4) is... <BR>\n" );
document.write( "A. 3squaroot(3)+squaroot(2) <BR>\n" );
document.write( "B. -3+squaroot(2) <BR>\n" );
document.write( "C. -3-squaroot(2) <BR>\n" );
document.write( "D. 3squaroot(3)-squaroot(2)<BR>\n" );
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document.write( "For(-61&#960;/6), use reference angle(-&#960;/6) in quadrant IV where cos>0<BR>\n" );
document.write( "6cos(-61&#960;/6)=6cos(-&#960;/6)=6&#8730;3/2=3&#8730;3<BR>\n" );
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document.write( "For(13&#960;/4), use reference angle(5&#960;/4) in quadrant III where sin<0<BR>\n" );
document.write( "2sin(13pi/4)=2sin(5&#960;/4)=2&#8730;2/2=&#8730;2<BR>\n" );
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document.write( "6cos(-61pi/6)-2sin(13pi/4)=3&#8730;3-&#8730;2 (ans. D) </SPAN>\n" );
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