document.write( "Question 1021198: 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 #636989 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29=sqrt%28x%5E2-1%29\"\r
\n" ); document.write( "\n" ); document.write( "domain will start with the values of \"x\" that make \"x%5E2-1=0\"
\n" ); document.write( "\"x%5E2=1\"->\"x=1\" or \"x=-1\" and go right and left from these values including these values\r
\n" ); document.write( "\n" ); document.write( "so, domain is:\r
\n" ); document.write( "\n" ); document.write( "{ \"x\" element \"R\" : \"x%3C=-1\" or \"x%3E=1\" }\r
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