Home
Class 12
MATHS
If alpha and beta are the roots of equa...

If `alpha` and `beta` are the roots of equation `ax^2 + bx + c = 0,` then the value of `alpha/beta + beta/alpha` is

A

`(b^2 - 2ac)/(ac)`

B

`(b^2 - ac)/(ac)`

C

`(c^2 - 2ab)/(ab)`

D

`(c^2 -a^2)/(ab)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • LOGARITHMS

    ARIHANT PUBLICATION JHARKHAND|Exercise Exam Booster For Cracking JEE|20 Videos

  • MODEL SOLVED PAPER 2017

    ARIHANT PUBLICATION JHARKHAND|Exercise SECTION III : MATHEMATICS |50 Videos

Similar Questions

Explore conceptually related problems

If alpha and beta are the roots of the equation ax^(2)+bx+c=0, then the value of alpha^(3)+beta^(3)

If alpha and beta are the roots of the equation ax^(2) + bx + c = 0 , then what is the value of the expression (alpha + 1)(beta + 1) ?

If alpha and beta are roots of ax^(2) + bx + c = 0 , then find the value of a((alpha^(2) + beta^(2))/(beta alpha)) + b((alpha)/(beta) + (beta)/(alpha))

ARIHANT PUBLICATION JHARKHAND-MODEL SOLVED PAPER-SECTION-I : MATHEMATICS
  1. The roots of the quadratic equation 3x^2 - 5x + 2 = 0 are

    Text Solution

    |

  2. The number of terms in arithmetics series 7, 11, 15,...,139 is

    Text Solution

    |

  3. If alpha and beta are the roots of equation ax^2 + bx + c = 0, then ...

    Text Solution

    |

  4. A point C is called the midpoint of a line segment bar(AB) if

    Text Solution

    |

  5. In a histogram each class rectangle is constructed with base as

    Text Solution

    |

  6. The value of 3. sqrt256 - 10. root(3)(125) + root(4)(81) is

    Text Solution

    |

  7. The sides of two symmetrical triangles are in the ratio 4:9. The ratio...

    Text Solution

    |

  8. The volume of two cylinders are equal and their heights are in the rat...

    Text Solution

    |

  9. If the length of shadow of a pole on a level ground is twice the lengt...

    Text Solution

    |

  10. Given, figure showing the percentage of people staying in given four V...

    Text Solution

    |

  11. p ^^ (q ^^ r) = (p ^^ q) ^^ r is

    Text Solution

    |

  12. 12 of 26% of 5/(78) of 38% of 7/(152) of 10000= ?

    Text Solution

    |

  13. The value of sin^4 A - cos^4 A is

    Text Solution

    |

  14. If roots of equation px^2 + qx + 3 = 0 are reciprocal, then

    Text Solution

    |

  15. Mean and median of a simple distribution are 38 and 39 respectively. T...

    Text Solution

    |

  16. pi is

    Text Solution

    |

  17. The value of (x^(log10 - y - log10 z)) xx (y^(log10 z -log10 x)) xx (z...

    Text Solution

    |

  18. If (x-6) is the HCF of x^2- 2x - 24 and x^2-kx-6, then what is the val...

    Text Solution

    |

  19. The class marks of a frequency distribution are 15, 20, 25, 30. The cl...

    Text Solution

    |

  20. The difference between two numbers is 26 and one number is three ti...

    Text Solution

    |