document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182330>Question 1182330</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Show that<BR>\n" );
document.write( "2<BR>\n" );
document.write( "7<BR>\n" );
document.write( "sin4 2𝜃 sin4 𝜃 = cos 12𝜃 − 4 cos 10𝜃 + 2 cos 8𝜃 + 12 cos 6𝜃 − 17 cos 4𝜃 − 8 cos 2𝜃 + 14<BR>\n" );
document.write( "Sum the series<BR>\n" );
document.write( "sin 𝜃 sin 2𝜃 + sin 2𝜃 sin 3𝜃 + sin 3𝜃 sin 4𝜃 + ⋯ upto n terms, 𝑛 ∈ ℕ<BR>\n" );
document.write( "Solve the equation<BR>\n" );
document.write( "(𝑧 + 1)<BR>\n" );
document.write( "7 = 𝑧<BR>\n" );
document.write( "7<BR>\n" );
document.write( "[cos 7𝛼 + 𝑖 sin 7𝛼] . </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #812314 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</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=812314\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( " </SPAN>\n" );
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