document.write( "Question 445902: please help with the following question i just cant figure it out it says
\n" ); document.write( "Find the three cube roots of Z = 5cos225degrees + jsin 225degrees and show these on an argand diagram
\n" ); document.write( "Which of these roots is the PRINCIPAL ROOT? \n" ); document.write( "
Algebra.Com's Answer #307065 by stanbon(75887)\"\" \"About 
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Find the three cube roots of Z = 5cos225degrees + jsin 225degrees and show these on an argand diagram
\n" ); document.write( "Which of these roots is the PRINCIPAL ROOT?
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\n" ); document.write( "Z^(1/3) = 5^(1/3)[cos(225+360n)/3 + jsin(225+360n)]
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\n" ); document.write( "Let n = 0 then z^(1/3) = 5^(1/3)[cos(75) + jsin(75)]
\n" ); document.write( "That is the principal root
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\n" ); document.write( "Let n = 1 then z^(1/3) = 5^(1/3)[cos(195) + jsin(195)]
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\n" ); document.write( "Let n = 2 then z^(1/3) = 5^(1/3)[cos(315) + jsin(315)]
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\n" ); document.write( "Those are the 3 cube roots.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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