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If functions f and g have domains Df and Dg respectively, then the domain of f/g is given by?
  1. The intersection of Df and Dg without the zeros of function g
  2. The intersection of Df and Dg
  3. Union of Df and Dg
  4. None of these
Explanation
  1. Intersection of Df and Dg: The function fg is defined only where both f and g are defined.

  2. Excluding zeros of g: The function fg is undefined where g(x)=0 because division by zero is not allowed.

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