document.write( "Question 1021874: Please show work \r
\n" ); document.write( "\n" ); document.write( "Consider the function
\n" ); document.write( "f(x)=√(x^2-1)
\n" ); document.write( " What is the domain for f(x)?
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Algebra.Com's Answer #637742 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Square root requires non-negative operands.
\n" ); document.write( "\"x%5E2-1%3E=0\"
\n" ); document.write( "\"x%5E2%3E=1\"
\n" ); document.write( "\"x%3E=1\" and \"x%3C=-1\"
\n" ); document.write( "So the domain is,
\n" ); document.write( "(\"-infinity\",\"-1\")U(\"1\",\"infinity\")\r
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