document.write( "Question 824654: Find the Domain
\n" ); document.write( "f(x)=sqrt(x^2-4)
\n" ); document.write( "x^2-4>=0
\n" ); document.write( "x^2>=4
\n" ); document.write( "Answer x>=2\r
\n" ); document.write( "\n" ); document.write( "These are the options to choose from and I'm not sure how to put it in this form. I don't know when to use () or [].
\n" ); document.write( "[-2,2]
\n" ); document.write( "[0,infinity)
\n" ); document.write( "(-2,2)
\n" ); document.write( "(-infinity,-2)U(2,infinity)
\n" ); document.write( "[-infinity,-2]U[2,infinity]
\n" ); document.write( "(0,infinity)
\n" ); document.write( "[-infinity,-2)U(2,infinity]
\n" ); document.write( "All real numbers
\n" ); document.write( "None of these
\n" ); document.write( "(-infinity,-2]U[2,infinity) \n" ); document.write( "

Algebra.Com's Answer #496677 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
Find the Domain
\n" ); document.write( "f(x)=sqrt(x^2-4)
\n" ); document.write( "x^2-4>=0
\n" ); document.write( "x^2>=4
\n" ); document.write( "Answer x>=2 OR x<=-2
\n" ); document.write( "------
\n" ); document.write( "(-oo,-2] U [2,+oo)\r
\n" ); document.write( "\n" ); document.write( "======================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "====================== \n" ); document.write( "

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