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NDA2019MathematicsQuadratic EquationActual

The equation px ^2+ qx + r =0 (where p , q , r , all are positive) has distinct real roots a and b . Which one of the following is correct?

Options

  1. Aa 0, ~b 0
  2. Ba 0 , b 0
  3. Ca 0 , b 0
  4. Da 0 , b 0

Correct answer

B. a 0 , b 0

Step-by-step solution

px ^2+ qx + r =0,( p , q , r are positive ) Whenever the coefficients and constant are positive in quadratic equation, its roots are always negative. a 0, ~b 0

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