document.write( "Question 1043084: Sketch a graph of the polar equation, and express the equation in rectangular coordinates.\r
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Algebra.Com's Answer #658188 by ikleyn(52908)\"\" \"About 
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\n" ); document.write( "Sketch a graph of the polar equation, and express the equation in rectangular coordinates.\r
\n" ); document.write( "\n" ); document.write( "θ=-pi/2
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\n" ); document.write( "\n" ); document.write( "It is the ray from the origin of the coordinate system directed vertically down.\r
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\n" ); document.write( "\n" ); document.write( "The (x,y)-equation is x = 0, y <= 0.\r
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\n" ); document.write( "\n" ); document.write( "No part of the ray directed vertically up. It is not included.\r
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\n" ); document.write( "\n" ); document.write( "Both RobertB and Edwin McCravy are very respective members of our tutor community.\r
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\n" ); document.write( "\n" ); document.write( "Unfortunately, they both are wrong in this case.\r
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\n" ); document.write( "\n" ); document.write( "The description in (x,y)-coordinates is x = 0, y <= 0.\r
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\n" ); document.write( "\n" ); document.write( "No part of the ray directed vertically up. It is not included.\r
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\n" ); document.write( "\n" ); document.write( "On complex numbers see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Complex numbers and arithmetic operations on them\r
\n" ); document.write( "\n" ); document.write( "    - Complex plane\r
\n" ); document.write( "\n" ); document.write( "    - Addition and subtraction of complex numbers in complex plane\r
\n" ); document.write( "\n" ); document.write( "    - Multiplication and division of complex numbers in complex plane\r
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