document.write( "Question 791713: Write the equation center (0,0) r= 1/2
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Algebra.Com's Answer #479693 by Alan3354(69443)\"\" \"About 
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Write the equation center (0,0) r= 1/2
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\n" ); document.write( "Do it like this one:
\n" ); document.write( "If you mean eqn of a circle:
\n" ); document.write( "\"x%5E2+%2B+y%5E2+=+4%5E2\"
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