Home
Class 12
MATHS
Without expanding find the value of the ...

Without expanding find the value of the deteminant `|[3, 6, 9],[-2, 4 ,-6],[8 ,16 ,24]|`.

Promotional Banner

Topper's Solved these Questions

  • CONTINUITY AND DIFFERENTIABILITY

    SHARAM PUBLICATION|Exercise EXAMPLE|156 Videos
  • DIFFERENTIAL EQUATION

    SHARAM PUBLICATION|Exercise EXAMPLE|124 Videos

Similar Questions

Explore conceptually related problems

Find the value of determinant |{:(2,-3,5),(6,0,4),(1,5,-7):}|

Without expanding prove that: |[12, 2, 4, -5, 1],[-8, 1, -5, 2, -1],[6, 4, a ,-3, 2],[-10, 2, 1 ,3 ,4],[-2, 4, 6 ,8, -5]|=|[12, -4, -8, 10, -2],[4, 1, -5, 2, -1],[-3, 4, a, -3, 2],[5, 2, 1, 3, 4],[1, 4, 6, 8, -5]| .

Without expanding,show that the following determinant vanishes. abs((6,2,1),(9,3,2),(12,4,3))

Find the adjoint of the following matrice. [[1,3,0],[2,-1,6],[5,-3,1]]

Write the value of |[2,3,4],[5,6,8],[6x,9x,12x]|

Without expanding show that |{:(102,1,17),(18,3,3),(36,4,6):}|=0

If a, b, c, are in A.P. find the value of |[2y+4, 5y+7, 8y+a],[3y+5, 6y+8, 9y+b], [4y+6, 7y+9, 10y+c]|

SHARAM PUBLICATION-DETERMINANT-EXAMPLE
  1. Solve for x, |{:(15-2x,11,10),(11-3x,17,16),(7-x,14,13):}|=0

    Text Solution

    |

  2. What is the value of |[i^(103), 3 ,i^(101)],[i^(56), 5, i^(54)],[i^(23...

    Text Solution

    |

  3. Without expanding find the value of the deteminant |[3, 6, 9],[-2, 4 ,...

    Text Solution

    |

  4. Prove that:|[1, a ,a^2],[a^2, 1 ,a],[a, a^2, 1]| is a perfect square.

    Text Solution

    |

  5. Without expanding prove that: |[12, 2, 4, -5, 1],[-8, 1, -5, 2, -1],[6...

    Text Solution

    |

  6. Prove that: |[1, 1, 1],[a, b, c],[a^2, b^2, c^2]|=(a-b)(b-c)(c-a)

    Text Solution

    |

  7. Solve : |[x-a, 0, 0],[a, x-b, 0],[a, b, x-c]|=0

    Text Solution

    |

  8. What is the value of the determinant |[0, 0, 2],[0, 2, 0],[2, 0 ,0]|

    Text Solution

    |

  9. Solve the following : [[1+x,1,1],[1,1+x,1],[1,1,1+x]]=0

    Text Solution

    |

  10. Find the value of |{:(17,58,97),(19,60,99),(18,59,98):}| without expan...

    Text Solution

    |

  11. Prove that the following. [[1+a,1,1],[1,1+b,1],[1,1,1+c]] = abc(1+1/...

    Text Solution

    |

  12. Evaluate the following determinants: [[0,a^2,b],[b^2,0,a^2],[a,b^2,0...

    Text Solution

    |

  13. Prove that: |[a+b+2c, a, b],[c, b+c+2a, b],[c, a, c+a+2b]|=2(a+b+c)^3

    Text Solution

    |

  14. Without expanding prove that |[1,a,a^(2),-bc],[1,b,b^(2),-ca],[1,c,c^(...

    Text Solution

    |

  15. Prove the following : [[1,bc,a(b+c)],[1,ca,b(c+a)],[1,ab,c(a+b)]]=0

    Text Solution

    |

  16. Given the equations x=cy+bz, y=az+cx and z=bx+ay where x,y and z a...

    Text Solution

    |

  17. Eliminate x,y,z from a=x/y-z, b=y/z-x, c=z/x-y

    Text Solution

    |

  18. Prove that abs[[b+c,c+a,a+b],[q+r,r+p,p+q],[y+z,z+x,x+y]]=2abs[[a,b,c]...

    Text Solution

    |

  19. Prove that the following. [[1+a,1,1],[1,1+b,1],[1,1,1+c]] = abc(1+1/...

    Text Solution

    |

  20. Prove that |[x+y, x, x],[5x+4y, 4x, 2x], [10x+8y, 8x, 3x]|=x^3

    Text Solution

    |