document.write( "Question 963561: Can you please help me, have difficulty with question: Write following complex number in rectangular form and sketch their representation in Argand diagrams; 4 cis 120° \n" ); document.write( "
Algebra.Com's Answer #588679 by Alan3354(69443)\"\" \"About 
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4 cis 120° = 4cos(120) + 4i*sin(120)
\n" ); document.write( "= -2 + 2i*sqrt(3)
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