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NDA2010MathematicsQuadratic EquationActual

If , are the roots of the quadratic equation x^2-x+1=0 , then which one of the following is correct?

Options

  1. A( ^4- ^4 ) is real
  2. B2 ( ^5+ ^5 )=( )^5
  3. C( ^6- ^6 )=( )^5
  4. D( ^8+ ^8 )=( )^8

Correct answer

A. ( ^4- ^4 ) is real

Step-by-step solution

The correct answer is option (A).

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