document.write( "Question 1134426: convert the equation from polar to rectangular
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Algebra.Com's Answer #751925 by ikleyn(52810)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "r = \"cos%282theta%29\"\r\n" );
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document.write( "r = \"cos%5E2%28theta%29\" - \"sin%5E2%28theta%29\"\r\n" );
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document.write( "r = \"%28x%2Fr%29%5E2\" - \"%28y%2Fr%29%5E2\"\r\n" );
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document.write( "\"r%5E3\" = \"x%5E2\" - \"y%5E2\"\r\n" );
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document.write( "\"%28x%5E2+%2B+y%5E2%29%5E%283%2F2%29\" = \"x%5E2\" - \"y%5E2\".\r\n" );
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document.write( "Or, if you want to avoid radicals, square both sides\r\n" );
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document.write( "\"%28x%5E2+%2B+y%5E2%29%5E3\" = \"%28x%5E2+-+y%5E2%29%5E2\".\r\n" );
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