document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=761119>Question 761119</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to simplify an expression using a double angle formula. the expression is<BR>\n" );
document.write( "2cos^2(41)-1   would the simplification be cos(82)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #463073 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=463073\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have to simplify an expression using a double angle formula. the expression is<BR>\n" );
document.write( "2cos^2(41)-1 would the simplification be cos(82)?<BR>\n" );
document.write( "**<BR>\n" );
document.write( "Identity:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%282x%29=2cos%5E2%28x%29-1 ALIGN=MIDDLE  ALT=\"cos%282x%29=2cos%5E2%28x%29-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2cos%5E2%2841%29-1=2%2A41=82 ALIGN=MIDDLE  ALT=\"2cos%5E2%2841%29-1=2%2A41=82\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "so, you got the correct answer </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );