document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=607371>Question 607371</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to know the inverse of cosine of cos 2/7\r<BR>\n" );
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document.write( "The problem is written out like this:<BR>\n" );
document.write( "cos^-1(cos 2/7)\r<BR>\n" );
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document.write( "I can do it on the calculator but its not supposed to be worked on the calculator. Help please?? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #382651 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=382651\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cos^-1(cos 2/7)<BR>\n" );
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document.write( "= 2/7<BR>\n" );
document.write( "It's similar to the reciprocal of the reciprocal. </SPAN>\n" );
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