document.write( "Question 348745: How do I write the domain of a function in set notation?\r
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document.write( "Math problem:\r
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document.write( "f(x)=(x^2 + 16)/x^2 - 3x - 28\r
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document.write( "I have that the number that should be excluded from the domain is \"7\"\r
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document.write( "But I do not know how to write the domain of the function in set notation?\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #249306 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How do I write the domain of a function in set notation? \n" ); document.write( "Math problem: \n" ); document.write( "f(x)=(x^2 + 16)/x^2 - 3x - 28 \n" ); document.write( "I have that the number that should be excluded from the domain is \"7\" \n" ); document.write( "------- \n" ); document.write( "Factor where you can: \n" ); document.write( "f(x) = (x^2+16)/[(x-7)(x+4)] \n" ); document.write( "----- \n" ); document.write( "\"7\" and \"-4\" are excluded \n" ); document.write( "----- \n" ); document.write( "Domain: (-oo,-4)U(4,7)U(7,+oo) \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |