document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=644726>Question 644726</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having trouble proving the identity:\r<BR>\n" );
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document.write( "cos^2(theta) =Cot^2/ 1+cot^2(theta)\r<BR>\n" );
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document.write( "I thought of getting into csc^2 but not sure what to do with it. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #405236 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=405236\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the identity: cotē &#952; + 1 = cscē&#952;<BR>\n" );
document.write( "The right side becomes<BR>\n" );
document.write( "(cscē&#952; - 1)/(cscē&#952;) = 1 - (1/cscē&#952;)<BR>\n" );
document.write( "= 1 - sinē&#952;<BR>\n" );
document.write( "= cosē &#952;  </SPAN>\n" );
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