document.write( "Question 1126458: What is the radius of x^2 -y^2=4 \n" ); document.write( "
Algebra.Com's Answer #742784 by ikleyn(52786)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "The equation is NOT an equation of a circle.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "It is an equation of a hyperbola.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Therefore, in your post the question is not relevant to the given part,
\n" ); document.write( "and, in opposite, the given part is not relevant to the question.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The post is defective.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );