Home
Class 11
MATHS
If alpha,beta,gamma are the roots of x^3...

If `alpha,beta,gamma` are the roots of `x^3+ax+b`=0, then the value of `alpha^3+beta^3+gamma^3`

Text Solution

Verified by Experts

-3b
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATION

    PATHFINDER|Exercise QUESTION BANK|19 Videos
  • RECTANGULAR CO-ORDINATES

    PATHFINDER|Exercise QUESTION BANK|27 Videos

Similar Questions

Explore conceptually related problems

If alpha,beta,gamma are the roots of the equation x^3+x+1=0 , then the value of alpha^3+beta^3+gamma^3 is.

If alpha,beta,gamma are the roots of he euation x^3+4x+1=0, then find the value of (alpha+beta)^(-1)+(beta+gamma)^(-1)+(gamma+alpha)^(-1) .

If alpha , beta , gamma are the roots of the equation px^3 - qx + r = 0 , then the value of alpha + beta + gamma is

If alpha, beta, gamma are the roots of x^3 + px + q = 0 , then alpha beta gamma = ___________ .

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

If alpha,beta,gamma are the roots of the equation x^3+p x^2+q x+r=0, then find he value of (alpha-1/(betagamma))(beta-1/(gammaalpha))(gamma-1/(alphabeta)) .

If alpha,beta are the roots of the quadratic equation x^2+px+q=0 , then the values of alpha^3+beta^3 and alpha^4+alpha^2beta^2+beta^4 are respectively

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

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 a. -75 b. 25 c. 0 d. 75

IF alpha and beta be the roots of the equation 5x^2+7x+3=0 , find the value of (alpha^3+beta^3)/(alpha^-1+beta^-1) .

PATHFINDER-QUADRATIC EQUATION AND EXPRESSION-QUESTION BANK
  1. Solve the equation (x^2-6x)^2=81+2(x-3)^2

    Text Solution

    |

  2. Solve log(1/3)(x^2-3x+5)lt-1

    Text Solution

    |

  3. If alpha,beta,gamma are the roots of x^3+ax+b=0, then the value of alp...

    Text Solution

    |

  4. Find the number of redered pairs (x,y) satisfying x^2+1=y and y^2+1=x

    Text Solution

    |

  5. The roots of the quadratic equation 2x^2+3x+1=0 are

    Text Solution

    |

  6. The number of values of 'a' for which (a^2-3a+2)x^2+(a^2-5a+6)x+a^2-4...

    Text Solution

    |

  7. If a and b are integers and 2-sqrt3 is a root of the equation 3x^2+ax+...

    Text Solution

    |

  8. If the sum of the roots of ax^2+bx+c=0 is equal to the sum of their s...

    Text Solution

    |

  9. If x is real number, then the minimum value of x^2+x+1 is

    Text Solution

    |

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

    Text Solution

    |

  11. If the quadratic equations ax^2+2cx+b=0 and ax^2+2bx+c=0 (bne0) have a...

    Text Solution

    |

  12. The value of 'a' for which the equation x^3+ax+1=0 and x^4+ax^2+1=0, w...

    Text Solution

    |

  13. The coefficient of 'x' in the quadratic equation ax^2+bx+c=0 was wrong...

    Text Solution

    |

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

    Text Solution

    |

  15. If one root of the equation x^2+px+12=0 is 4, while the equation x^2+p...

    Text Solution

    |

  16. Ifalpha,beta be the roots of x^2-a(x-1)+b=0,then the value of 1/(alpha...

    Text Solution

    |

  17. If one root of the equation x^2+(1-3i)x-2(1+i)=0is -1+i, then the oth...

    Text Solution

    |

  18. If alpha,beta roots of ax^2+bx+c=0. Find the quadratic equation whose ...

    Text Solution

    |

  19. If alpha,beta be the two roots of the equation x^2+x+1=0, then the equ...

    Text Solution

    |

  20. The harmonic mean of the roots of the equation (5+sqrt)x^2-(4+sqrt5)x+...

    Text Solution

    |