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KCET2019MathematicsFunctions

The domain of the function ( f: R R ) defined by ( f(x)= x²-7 x+12 ) is

Options

  1. A((- , 3] (4, ) )
  2. B( (3,4) )
  3. C((- , 3] [4, ) )
  4. D((- , 3] [4, ) )

Correct answer

C. ((- , 3] [4, ) )

Step-by-step solution

(C)f(x)= x²-7 x+12 x²-7 x+12 0(x-4)(x-3) 0 x (- , 3] [4, )

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