document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1160395>Question 1160395</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the a+ib for of cis(15 degrees). Do this in another way by dividing the a+ib forms of cis(45 degrees) by cis(30 degrees). Check that you get the same results and explain. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #783925 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=783925\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the a+ib for of cis(15 degrees). <BR>\n" );
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document.write( "Cis(15) = sin(15) + i*cos(15)<BR>\n" );
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document.write( "Do this in another way by dividing the a+ib forms of cis(45 degrees) by cis(30 degrees).<BR>\n" );
document.write( "cis(45)/cis(30) = cis(15)<BR>\n" );
document.write( "If you want to find sine and cosine of 15 degs, go to Half angle formulas on Wikipedia.<BR>\n" );
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document.write( " Check that you get the same results and explain.<BR>\n" );
document.write( "Good idea.<BR>\n" );
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