document.write( "Question 1036836: Write the rectangular equation in polar form.
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Algebra.Com's Answer #651577 by ikleyn(52776)\"\" \"About 
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\n" ); document.write( "Write the rectangular equation in polar form.
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document.write( "In polar form, \r\n" );
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document.write( "x = \"r%2Acos%28alpha%29\", y = \"r%2Asin%28alpha%29\".    (1)\r\n" );
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document.write( "So, substitute/plug-in the expressions (1) into the original equation\r\n" );
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document.write( "\"%28r%2Acos%28alpha%29%29%5E2+%2B+%28r%2Asin%28alpha%29-2%29%5E2\" = 4,\r\n" );
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document.write( "and then simplify it.\r\n" );
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