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

If `alpha" and "beta` are the roots of the equation `x^(2)+3x-4=0`, then `(1)/(alpha)+(1)/(beta)` is equal to

A

`(-3)/(4)`

B

`(3)/(4)`

C

`(-4)/(3)`

D

`(4)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • COMPLEX NUMBERS AND QUADRATIC EQUATIONS

    NEW JOYTHI PUBLICATION|Exercise EXERCISE|50 Videos

  • BINOMIAL THEOREM

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|51 Videos

  • CONIC SECTIONS

    NEW JOYTHI PUBLICATION|Exercise EXERCISE - HYPERBOLA|9 Videos

Similar Questions

Explore conceptually related problems

If alpha" and "beta are the roots of the equation x^(2)+2x+4=0, " then "(1)/(alpha^3)+(1)/(beta^3) is equal to

If alpha and beta are the roots of the equation x^(2)-ax+b=0 ,find Q(b) (1)/(alpha)+(1)/(beta)

If alpha and beta are the roots of the equation x^(2) -1 =0 " then " (2alpha)/(beta ) + (2 beta)/(alpha) is equal to ..........

If alpha and beta are the roots of the equation x^(2)-ax+b=0 ,find Q (a)(alpha)/(beta)+(beta)/(alpha)

If alpha and beta are the zeros of the polynomials P(x)=4x^(2)+3x+7 thent 1/(alpha)+1/(beta) is equal to …………..

If alpha and beta are the zeroes of the polynomial p(x) = 4x^2 + 3x +7 then 1/(alpha) + 1/(beta) is equal to ……..

If alpha and beta are the roots of the equation 3x^(2) - 5x + 2 = 0 , find the value of (i) (alpha)/(beta) + (beta)/(alpha) (ii) alpha-beta (iii) (alpha^(2))/(beta) + (beta^(2))/(alpha)

If alpha" and "beta are the roots of the quadratic equation 4x^(2)+3x+7=0 , then the value of (1)/(alpha)+(1)/(beta)=

If alpha and beta are the roots of the equation x^2 + 2x +8=0 then the value of (alpha)/(beta) + (beta)/(alpha) is ………………….. .

NEW JOYTHI PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-QUESTIONS FROM COMPETITIVE EXAMS
  1. If the roots of x^(2)-ax+b=0 are two consecutive odd integers, then a^...

    Text Solution

    |

  2. If alpha" and "beta are the roots of x^(2)-ax+b^(2)=0, then alpha^(2)+...

    Text Solution

    |

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

    Text Solution

    |

  4. The value of x such that 3^(2x)-2(3^(x+2))+81=0 is

    Text Solution

    |

  5. If the roots of the equation x^(2)+2bx+c=0 are alpha" and "beta, " the...

    Text Solution

    |

  6. The equation whose roots are the squares of the roots of the eqation 2...

    Text Solution

    |

  7. z and omega are two nonzero complex number such that |z|=|omega|" and ...

    Text Solution

    |

  8. If |z-4| lt |z-2|, its solution is given by

    Text Solution

    |

  9. The locus of the centre of a circle which touches the circle |z-z(1)|=...

    Text Solution

    |

  10. If alpha ne beta" but "alpha^(2)=5 alpha-3" and "beta^(2)= 5 beta-3 th...

    Text Solution

    |

  11. Difference between the corresponding roots of x^(2)+ax+b=0" and "x^(2)...

    Text Solution

    |

  12. Product of real roots of the equation x^(2)+|x|+9=0

    Text Solution

    |

  13. If p and q are the roots of the equation x^(2)+px+q=0, then

    Text Solution

    |

  14. If a,b , c are distinct +ve real numbers and a^(2)+b^(2)+c^(2)=1" then...

    Text Solution

    |

  15. The value of a for which one root of the quadratic equation (a^(2)-5a+...

    Text Solution

    |

  16. If the sum of the roots of the quadratic equation ax^(2)+bx+c=0 is equ...

    Text Solution

    |

  17. The number of real solution of the equation x^(2)-3|x|+2=0 is

    Text Solution

    |

  18. If ((1+i)/(1-i))^(x)=1, then

    Text Solution

    |

  19. If z and omega are two non-zero complex numbers such that |z omega|=1"...

    Text Solution

    |

  20. Let z(1)" and "z(2) be two roots of the equation z^(2)+az+b=0, z being...

    Text Solution

    |