document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983624>Question 983624</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find all the solutions to x^4+1=0<BR>\n" );
document.write( "(Enter your answers in rectangular form.)\r<BR>\n" );
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document.write( "Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604394 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=604394\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find all the solutions to x^4+1=0<BR>\n" );
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document.write( "x^4 = -1<BR>\n" );
document.write( "x^4 = 1cis(180)<BR>\n" );
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document.write( "x = cis(45), cis(135), cis(225), cis(315)<BR>\n" );
document.write( "Is that sufficient? </SPAN>\n" );
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