Home
Class 10
MATHS
If alpha and beta are the roots of the q...

If `alpha` and `beta` are the roots of the quadratic equation `x^2-3x-2=0`, then `alpha/beta+beta/alpha=`

A

`3/2`

B

`(-3)/(-2)`

C

`13/2`

D

`(-13)/2`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    TARGET PUBLICATION|Exercise Additional problems for Practice : Based on practice set 2.1|24 Videos

  • QUADRATIC EQUATIONS

    TARGET PUBLICATION|Exercise Additional problems for Practice : Based on Practice set 2.2|36 Videos

  • QUADRATIC EQUATIONS

    TARGET PUBLICATION|Exercise probelm set - 2|70 Videos

  • PYTHAGORAS THEOREM

    TARGET PUBLICATION|Exercise Chapter Assessment|16 Videos

  • QUESTION FROM STD. IX

    TARGET PUBLICATION|Exercise Statistics|14 Videos

Similar Questions

Explore conceptually related problems

If alpha " and " beta are the roots of the quadratic equation x^2 -5x +6 =0 then find alpha/beta + beta/alpha

If alpha and beta are the roots of the quadratic equation 2x^2+6x-5=0 , then find (alpha+beta) and alpha xx beta .

If alpha and beta are the roots of the quadratic equation 2x^2+6x-5=0 , then find (alpha+beta) and alpha xx beta .

If alpha,beta are the roots of the quadratic equation 4x^(2)-4x+1=0 then alpha^(3)+beta^(3)=

If alpha and beta are the roots of the quadratic equation 3m^2+2m-4=0 , then alpha^(2)+beta^(2)=

If alpha and beta are the roots of the quadratic equation x^(2) + 3x - 4 = 0 , then alpha^(-1) + beta^(-1) = "_____" .

If alpha " and " beta are the roots of the quadratic equation x^2 -5x +6 =0 then find alpha^2 + beta^2

If alpha,beta, are the roots of quadratic equation 7x^(2)-13x-2=0 then find (alpha+beta)/(alpha beta)

If alpha and beta are the roots of the quadratic equation x^(2)-6x+1=0, then the value of (alpha^(2))/(beta^(2))+(beta^(2))/(alpha^(2)) is

TARGET PUBLICATION-QUADRATIC EQUATIONS-Multiple Choice Questions
  1. Which of the following equations has no real roots?

    Text Solution

    |

  2. If alpha and beta are the roots of the quadratic equation 3m^2+2m-4=0,...

    Text Solution

    |

  3. If alpha and beta are the roots of the quadratic equation x^2-3x-2=0, ...

    Text Solution

    |

  4. If the roots of a quadratic equation are -1 and 3, then the quadratic ...

    Text Solution

    |

  5. Which of the following is not a quadratic equation?

    Text Solution

    |

  6. If the qudratic equation 3x+1/x=x+3 is written in standard form, then

    Text Solution

    |

  7. Which of the following equation has 3 as a root?

    Text Solution

    |

  8. If one root of the quadratic equation p^2-3p+k=0 is 5, then the value ...

    Text Solution

    |

  9. The roots of the quadratic equation x^2+5x+6=0 are

    Text Solution

    |

  10. Solve: 4sqrt(3)x^(2)+5x-2sqrt(3)=0.

    Text Solution

    |

  11. Which term must be added and subtracted to solve the quadratic equatio...

    Text Solution

    |

  12. The roots of the quadratic equation m^2-3m+1=0 are

    Text Solution

    |

  13. The discriminate (Delta) of the quadratic equation 3x^2+2x-9=0 is

    Text Solution

    |

  14. If the discriminant (Delta) of the quadratic equation 4x^2+dx+25=0 is ...

    Text Solution

    |

  15. The roots of the qudratic equation 9x^2-6x+1=0 are

    Text Solution

    |

  16. The roots of the equation 2x^(2)-6x+3=0are

    Text Solution

    |

  17. Which of the following equations has no real roots?

    Text Solution

    |

  18. If alpha and beta are the roots of the quadratic equation 3m^2+2m-4=0,...

    Text Solution

    |

  19. If alpha and beta are the roots of the quadratic equation x^2-3x-2=0, ...

    Text Solution

    |

  20. If the roots of a quadratic equation are -1 and 3, then the quadratic ...

    Text Solution

    |