Home
Class 12
MATHS
Using properties of determinants, prove ...

Using properties of determinants, prove that: `|[alpha,alpha^2,beta+gamma],[beta,beta^2,gamma+alpha],[gamma,gamma^2,alpha+beta]| = (beta-gamma)(gamma-alpha)(alpha-beta)(alpha+beta+gamma)`

Promotional Banner

Topper's Solved these Questions

  • DETERMINANTS

    PRADEEP PUBLICATION|Exercise EXERCISE|342 Videos
  • CONTINUITY AND DIFFERENTIABILITY

    PRADEEP PUBLICATION|Exercise EXERCISE|788 Videos
  • DIFFERENTIAL EQUATIONS

    PRADEEP PUBLICATION|Exercise EXERCISE|507 Videos

Similar Questions

Explore conceptually related problems

Prove that |[[alpha,beta,gamma],[alpha^2,beta^2,gamma^2],[alpha^3,beta^3,gamma^3]]|= alpha beta gamma (alpha-beta)(beta-gamma)(gamma-alpha)

Without expanding, prove the following |(1,1,1),(alpha,beta,gamma),(betagamma,gammaalpha,alphabeta)|=(beta-alpha)(gamma-alpha)(alpha-beta)

Prove that : |[alpha+beta+gamma,-gamma,-beta],[-gamma, alpha+beta+gamma, -alpha],[-beta,-alpha,alpha+beta+gamma]|= 2(alpha+beta)(beta+gamma)(gamma+alpha)

If alpha+beta=pi/2a n dbeta+gamma=alpha, then tanalpha equals

If alpha, beta, gamma are the roots of the cubic x^(3)-px^(2)+qx-r=0 Find the equations whose roots are (i) beta gamma +1/(alpha), gamma alpha+1/(beta), alpha beta+1/(gamma) (ii) (beta+gamma-alpha),(gamma+alpha-beta),(alpha+beta-gamma) Also find the valueof (beta+gamma-alpha)(gamma+alpha-beta)(alpha+beta-gamma)

Prove that |{:(2,,alpha+beta+gamma+delta,,alphabeta+gammadelta),(alpha+beta+gamma+delta,,2(alpha+beta)(gamma+delta),,alphabeta(gamma+delta)+gammadelta(alpha+beta)),(alphabeta+gammadelta,,alphabeta(gamma+delta)+gammadelta(alpha+beta),,2alphabetagammadelta):}|=0

The value of |{:(betagamma,betagamma'+beta'gamma,beta'gamma'),(gammaalpha,gammaalpha'+gamma'alpha,gamma'alpha'),(alphabeta,alphabeta'+alpha'beta,alpha'beta'):}| is

Prove that cosalpha+cosbeta+cosgamma+cos(alpha+beta+gamma)=4cos(alpha+beta)/(2)cos(beta+gamma)/2cos(gamma+alpha)/2

In the given figure prove that g = alpha + beta + gamma .

In the given figure prove that g = alpha + beta + gamma .

PRADEEP PUBLICATION-DETERMINANTS-EXERCISE
  1. Evaluate |[x,y,x+y],[y,x+y,x],[x+y,x,y]|

    Text Solution

    |

  2. Evaluate |[1,x,y],[1,x+y,y],[1,x,x+y]|

    Text Solution

    |

  3. Using properties of determinants, prove that: |[alpha,alpha^2,beta+gam...

    Text Solution

    |

  4. Using properties of determinants, prove that: |[x,x^2,1+px^3],[y,y^2,1...

    Text Solution

    |

  5. Solve by matrix method 2/x + 3/y + 10/z = 4 , 4/x - 6/y + 5/z = 1 , ...

    Text Solution

    |

  6. If a, b, c, are in A.P, then the determinant |[x+2,x+3,x+2a],[x+3,x+4,...

    Text Solution

    |

  7. Let A = [[1,sintheta,1],[-sintheta,1,sintheta],[-1,-sintheta,1]], wher...

    Text Solution

    |

  8. Fill in the blanks : If A = [(1,a,3),(2,b,6),(3,c,9)], then det A is...

    Text Solution

    |

  9. Fill in the blanks : If cos 2 theta = 0, then |(0, costheta, sinthet...

    Text Solution

    |

  10. Fill in the blanks : Determinant of a skew symmetric matrix of order...

    Text Solution

    |

  11. Select the Correct Option If A is an invertible matrix of order 2, the...

    Text Solution

    |

  12. Fill in the blanks : If A is an invertible square matrix, then (A)^-...

    Text Solution

    |

  13. If A is matrix of order 3xx3, then (A^(2))^(-1)=…….

    Text Solution

    |

  14. Fill in the blanks : The determinant of a diagonal matrix is equal t...

    Text Solution

    |

  15. The sum of the products of elements of any row with the co-factors of ...

    Text Solution

    |

  16. If A is matrix of order 3xx3, then |3A|=……….

    Text Solution

    |

  17. Fill in the blanks : If A is a square matrix of order n then det (ad...

    Text Solution

    |

  18. Fill in the blanks : The determinant of a triangular matrix is equal...

    Text Solution

    |

  19. Find the area of the triangle whose vertices are (0,0),(a,0) and (0,b)

    Text Solution

    |

  20. If A,B,C are the angles of a triangle, then Delta=|{:(sin^(2)A, cotA...

    Text Solution

    |