document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=918224>Question 918224</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help on this problem. Thank you.\r<BR>\n" );
document.write( "\n" );
document.write( "Simplify the expression. Must not contain trig function.<BR>\n" );
document.write( "tan{(cos^-1)(x/3)} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557072 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=557072\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Simplify the expression. Must not contain trig function.<BR>\n" );
document.write( "tan{(cos^-1)(x/3)}<BR>\n" );
document.write( "This reads: tan of an angle whose cos=x/3<BR>\n" );
document.write( "let A=angle<BR>\n" );
document.write( "cosA=1/3<BR>\n" );
document.write( "sinA=&#8730;(1-cos^2A)=&#8730;1-1/9)=&#8730;(8/9)=&#8730;8/3<BR>\n" );
document.write( "tan{(cos^-1)(x/3)}=tanA=sinA/cosA=&#8730;8=2&#8730;2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );