document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=969466>Question 969466</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If sin(2x+20)=cos(40) find x\r<BR>\n" );
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document.write( "Please help and show all steps. Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #592349 by </B><A HREF=/tutors/aboutme.mpl?userid=erica65404><B>erica65404(394)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=erica65404><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=erica65404><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=592349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%282x%2B20%29=cos%2840%29 ALIGN=MIDDLE  ALT=\"sin%282x%2B20%29=cos%2840%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > find x\r<BR>\n" );
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document.write( "The cos(x) will always equal sin(90-x) which can be looked at as sin(y)=cos(x) where 90=x+y<BR>\n" );
document.write( "To give you a few quick examples:<BR>\n" );
document.write( "sin(60)=cos(30)<BR>\n" );
document.write( "sin(10)=cos(80)<BR>\n" );
document.write( "sin(90)=cos(0)<BR>\n" );
document.write( "The numbers must always add up to 90.\r<BR>\n" );
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document.write( "so cos(40) in the problem is equal to sin(50).\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sin%282x%2B20%29=sin%2850%29 ALIGN=MIDDLE  ALT=\"sin%282x%2B20%29=sin%2850%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B20=50 ALIGN=MIDDLE  ALT=\"2x%2B20=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=30 ALIGN=MIDDLE  ALT=\"2x=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=15 ALIGN=MIDDLE  ALT=\"x=15\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "--------------------------------<BR>\n" );
document.write( "If you have questions, please email me at ericahigley@yahoo.com. </SPAN>\n" );
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