document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=877377>Question 877377</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this question:\r<BR>\n" );
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document.write( "Prove the following identities\r<BR>\n" );
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document.write( "a. sin {&#952;} - sin{&#952;}cos^3{&#952;} = sin^3{&#952;}<BR>\n" );
document.write( "b. (cos{&#952;})/(1+sin{&#952;})-tan{&#952;}=sec{&#952;}<BR>\n" );
document.write( "c. (cos2x+sin^2{x})/(cos{x})=cos{x}<BR>\n" );
document.write( "d. csc{2A} - cot{2A} = tan{A} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #531128 by </B><A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><B>tommyt3rd(5050)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><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=tommyt3rd><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=531128\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) not an identity - try <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=theta=%283%2Api%29%2F4 ALIGN=MIDDLE  ALT=\"theta=%283%2Api%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b) also not an identity - see the graph\r<BR>\n" );
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document.write( "It seems that your instructions are misleading...please repost with a clear and complete question :) </SPAN>\n" );
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