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NDA2017MathematicsQuadratic EquationActual

If S= (x: x^2+1=0, x . is real ) , then S is

Options

  1. A-1
  2. B0
  3. C1
  4. Dan empty set

Correct answer

D. an empty set

Step-by-step solution

aligned & S= x: x^2+1=0, x: 5 real & x^2+1=0 x^2=-1 x= -1 complex number aligned No real numbers. So, S is empty set

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