document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=962409>Question 962409</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you please help with this equation: Write complex number in polar form:  &#8730;7+&#8730;21 • i </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #588019 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=588019\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write complex number in polar form: &#8730;7+&#8730;21 • i<BR>\n" );
document.write( "Complex Number form:: x + yi<BR>\n" );
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document.write( "Your Problem::<BR>\n" );
document.write( "x = sqrt(7)<BR>\n" );
document.write( "y = sqrt(21)<BR>\n" );
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document.write( "Converting to Polar:<BR>\n" );
document.write( "r = sqrt[x^2+y^2] = sqrt[7+21] = sqrt(28) = 2sqrt(7)<BR>\n" );
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document.write( "theta = arctan(y/x) = arctan(sqrt(21)/sqrt(7) = arctan(sqrt(3)) = pi/3<BR>\n" );
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document.write( "Ans: (2sqrt(7),pi/3)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );