Home
Class 14
MATHS
A quadratic equation has double root, th...

A quadratic equation has double root, then

A

the two roots lie on the different sides of the axis

B

the quadratic equation cannot be expressed in the form of a perfect square.

C

the product of the roots is always negative.

D

the sum of the roots may be positive or negative.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SET THEORY

    QUANTUM CAT|Exercise QUESTION BANK|81 Videos

  • TIME AND WORK

    QUANTUM CAT|Exercise QUESTION BANK |202 Videos

Similar Questions

Explore conceptually related problems

If a quadratic equation has one real root and a,b,cinR . other root is also real.

The quadratic equation with one root as the square root of -47+8sqrt(-3) is

QUANTUM CAT-THEORY OF EQUATIONS-QUESTION BANK
  1. If the two roots are real, equal and irrational, then which of the fol...

    Text Solution

    |

  2. If the roots of a quadratic equation are rational, which of the follow...

    Text Solution

    |

  3. A quadratic equation has double root, then

    Text Solution

    |

  4. If the roots are real and rational, theh Which of the following is the...

    Text Solution

    |

  5. If the roots are unequal, then the possible values of D is/are

    Text Solution

    |

  6. If D = 7744, then roots are

    Text Solution

    |

  7. If D = 4477, then the roots are

    Text Solution

    |

  8. If a quadratic equation has one real root then the other root will nec...

    Text Solution

    |

  9. If the roots are same, then the. roots must be

    Text Solution

    |

  10. Which one of the following is false about the equation 4x^2-12x+9=0?

    Text Solution

    |

  11. When the parabola opens, upward, then which.of the followfng condition...

    Text Solution

    |

  12. When the parabola touches the X-axis then which of the following condi...

    Text Solution

    |

  13. When the parabola never intersects the X-axis then which of the follow...

    Text Solution

    |

  14. The intersection of X-axis in parabola primarily depends on the value ...

    Text Solution

    |

  15. The parabola intersects the X-axis at most

    Text Solution

    |

  16. For a standard quadratic equation the parabola intersects the Y-axis a...

    Text Solution

    |

  17. If the quadratic graph opens downward, then the roots are always

    Text Solution

    |

  18. If the graph intersects X-axis at two distinct points, then,the roots ...

    Text Solution

    |

  19. If a given quadratic equation is multiplied by -2, now the'parabola wi...

    Text Solution

    |

  20. If the comprehensive graph of quadratic function lies in all the.four ...

    Text Solution

    |