document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1027793>Question 1027793</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If 4cos^2(x) + 3sin(2x) is equivalent to A + Rcos(2x-y), find the values of A,R and y. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #644393 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=644393\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4cos%5E2%28x%29+%2B+3sin%282x%29+=+4%28%281%2Bcos2x%29%2F2%29%2B3sin2x+ ALIGN=MIDDLE  ALT=\"4cos%5E2%28x%29+%2B+3sin%282x%29+=+4%28%281%2Bcos2x%29%2F2%29%2B3sin2x+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+%2B+2cos2x+%2B3sin2x+=+2%2Bsqrt%2813%29%28%282%2Fsqrt%2813%29%29cos2x+%2B+%283%2Fsqrt%2813%29%29sin2x%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Bsqrt%2813%29%28cosy%2Acos2x+%2B+siny%2Asin2x%29+ ALIGN=MIDDLE  ALT=\"2%2Bsqrt%2813%29%28cosy%2Acos2x+%2B+siny%2Asin2x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%2Bsqrt%2813%29%28cos%282x-y%29%29 ALIGN=MIDDLE  ALT=\"+2%2Bsqrt%2813%29%28cos%282x-y%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cosy+=+2%2Fsqrt%2813%29 ALIGN=MIDDLE  ALT=\"cosy+=+2%2Fsqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=siny+=+3%2Fsqrt%2813%29 ALIGN=MIDDLE  ALT=\"siny+=+3%2Fsqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+tan%5E-1%283%2F2%29 ALIGN=MIDDLE  ALT=\"y+=+tan%5E-1%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Therefore,\r<BR>\n" );
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document.write( "A = 2, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R+=+sqrt%2813%29 ALIGN=MIDDLE  ALT=\"R+=+sqrt%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+tan%5E-1%283%2F2%29 ALIGN=MIDDLE  ALT=\"y+=+tan%5E-1%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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