Maths-
General
Easy

Question

The domain of f left parenthesis x right parenthesis equals square root of x to the power of 2 end exponent minus 4 vertical line x vertical line plus 3 end root is

  1. left parenthesis negative infinity comma 3 right square bracket    
  2. left square bracket 1 comma infinity right parenthesis    
  3. left parenthesis negative infinity comma negative 3 right square bracket union left square bracket negative 1 comma infinity right parenthesis    
  4. left parenthesis negative infinity comma negative 3 right square bracket union left square bracket negative 1 , 1 right square bracket union left square bracket 3 comma infinity right parenthesis    

The correct answer is: left parenthesis negative infinity comma negative 3 right square bracket union left square bracket negative 1 , 1 right square bracket union left square bracket 3 comma infinity right parenthesis

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