document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=992186>Question 992186</A>: <I><SPAN STYLE=\"word-break: break-all;\"> sen2x=-&#8730;3/2\r<BR>\n" );
document.write( "\n" );
document.write( "tan3x=1\r<BR>\n" );
document.write( "\n" );
document.write( "cosx/2=&#8730;3/2\r<BR>\n" );
document.write( "\n" );
document.write( "cotx/3=-1/&#8730;3\r<BR>\n" );
document.write( "\n" );
document.write( "senx/2+cosx=1\r<BR>\n" );
document.write( "\n" );
document.write( "senx.cosx=1/2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #611862 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52847)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=611862\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "You systematically write &nbsp;senx, &nbsp;which is, &nbsp;probably, &nbsp;sen(x).\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "In the standard school Math, &nbsp;there is no such function, &nbsp;senx / sen(x).\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "There is &nbsp;sin(x), &nbsp;which stands for sines.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Do not use &nbsp;senx / sen(x) &nbsp;in future.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "------------------------------------------------<BR>\n" );
document.write( "<U>Comment from student</U>: Sorry its LIN x<BR>\n" );
document.write( "------------------------------------------------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Oo!! &nbsp;&nbsp;It looks like you have broken keyboard.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If you do not understand, &nbsp;here is one well known &nbsp;&nbsp;<U>\"programmer's joke\"</U>:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "\"A kyboard for sal: &nbsp;only on ky dosn't work\".\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Ha-ha-ha.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Please do not write me more. Thank you.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );