Home
Class 12
MATHS
If alpha,beta and gamma are roots of x^(...

If `alpha,beta` and `gamma` are roots of `x^(3)`-2x+1=0,then the value of `Sigma((1)/(alpha+beta-gamma))` is

A

`(-1)/(2)`

B

`-1`

C

0

D

`(1)/(2)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SOLVED PAPER 04

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

Similar Questions

Explore conceptually related problems

If alpha , beta and gamma are roots of the equations x^3+px+q=0 then the value of det : [(alpha,beta,gamma),(beta,gamma,alpha),(gamma,alpha,beta)] is

If alpha , beta , gamma are the roots of x^3+px+q=0 , then the value of the determine |(alpha,beta,gamma),(beta,gamma,alpha),(gamma,alpha,beta)| is

If alpha,beta,gamma are the roots of x^3-x^2-1=0 then the value of (1+alpha)/(1-alpha)+(1+beta)/(1-beta)+(1+gamma)/(1-gamma) is equal to

If alpha, beta, gamma are the roots of x^3+a x^2+b=0 then the value of [[alpha , beta , gamma],[beta , gamma , alpha],[gamma , alpha , beta]] is

If alpha and beta are the roots of x^(2) + qx + 1 = 0 and gamma, delta the roots of x^(2) + qx + 1 = 0 , then the value of (alpha - gamma ) (beta - gamma ) (a + delta ) beta + delta) is :

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

If alpha, beta and gamma are the roots of the equation x^(3)-8x+8=0 , then sum alpha^(2) and sum (1)/(alpha beta) are respectively

If alpha, beta, and gamma are the zeros of 2x^(3) - 4x^(2) + 6x +9 , find value of alpha ^(-1) + beta^(-1) + gamma^(-1)

If alpha,beta,gamma,sigma are the roots of the equation x^4+4x^3-6x^2+7x-9=0, then the value of (1+alpha^2)(1+beta^2)(1+gamma^2)(1+sigma^2) is

If alpha, beta the roots of 8x^(2) - 3x + 27 = 0 , then the value of [ ( (alpha^(2))/(beta))^(1//3) + ((beta^(2))/(alpha))^(1//3) ] is ,

KCET PREVIOUS YEAR PAPERS-SOLVED PAPER 2011-MATHEMATICS
  1. If (n) is an odd positive integer and (1+x+x^(2)+x^(3))^(n) = sum(r...

    Text Solution

    |

  2. If r^(th) (r+1)^(th) terms in the expansion of (p+q)^(n) are equal ,th...

    Text Solution

    |

  3. If alpha,beta and gamma are roots of x^(3)-2x+1=0,then the value of Si...

    Text Solution

    |

  4. Define a relation R on A ={1,2,3,4} as xRy if x divides y.R is

    Text Solution

    |

  5. The negation of pto(~pvvq) is

    Text Solution

    |

  6. (cos2A)/(a^(2))-(cos2B)/(b^(2))=1/(a^(2))-1/(b^(2))

    Text Solution

    |

  7. Angles of elevatiobn of the top of a tower from three points (collinea...

    Text Solution

    |

  8. The value of sin10^(@).sin30^(@).sin50^(@).sin70^(@) is

    Text Solution

    |

  9. Locus of a point which moves such that its distance from the X-axis is...

    Text Solution

    |

  10. The points A(1,2),B(2,4) and C(4,8) form a/an

    Text Solution

    |

  11. If line represented by x+3y-6=,2x+y-4=0 abd kx-3y+1=0 are concurrent ,...

    Text Solution

    |

  12. underset(xtoa)(lim)(sqrt(a+2x)-sqrt(3x))/(sqrt(3a+x)-2sqrt(x))=

    Text Solution

    |

  13. If f(x)={{:((logex)/(x-1),,,x ne 1),(k,,,x=1):}is continuous at x = 1...

    Text Solution

    |

  14. If A=[{:(costheta, sintheta),(-sintheta, costheta):}], then A.A' is

    Text Solution

    |

  15. If [{:(1,2,-1),(1,x-2,1),(x,1,1):}] is singular ,then the value of x ...

    Text Solution

    |

  16. If A and B ar symmetric matrics of the same order ,then which one of t...

    Text Solution

    |

  17. If omega is an imaginary cube root of unity ,then the value of [{:(1,o...

    Text Solution

    |

  18. If veca,vecb and vecc are unit vectors such that veca+vecb+vecc=vec0 t...

    Text Solution

    |

  19. If veca,vecb and vecc are non-coplaner,then value of veca{(vecbxxvec...

    Text Solution

    |

  20. If 2hati+3hatj,hati+hatj+hatk and lambdahati+4hatj+2hatk taken in an o...

    Text Solution

    |