document.write( "Question 433014: Find the domain of f and write it in set builder or interval notation.\r
\n" ); document.write( "\n" ); document.write( "f(x) = log(4 - √(2-x))
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Algebra.Com's Answer #300134 by robertb(5830)\"\" \"About 
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First we must have \"4+-+sqrt%282-x%29+%3E+0\".
\n" ); document.write( "<==> \"16+%3E+2-x\" after squaring both sides.
\n" ); document.write( "<==> \"x+%3E+-14\".\r
\n" ); document.write( "\n" ); document.write( "Intersect this with \"2+-+x+%3E=+0\", or \"2+%3E=+x\", to get the interval \r
\n" ); document.write( "\n" ); document.write( "(-14, 2]. This is the domain.
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