Home
Class 12
MATHS
If A=[[2, 0, -1], [3, 1, 2], [-1, 1, 2]]...

If `A=[[2, 0, -1], [3, 1, 2], [-1, 1, 2]]`, then adjA=

A

`[[0, -8, 4], [-1, 3, -2], [1, -7, 2]]`

B

`[[0, -1, 1], [8, 2, -7], [4, -2, 2]]`

C

`[[0, -1, 1], [-8, 3, -7], [4, -2, 2]]`

D

`[[0, -1, -1], [-8, 3, -7], [4, -2, 2]]`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • LINEAR PROGRAMMING

    NIKITA PUBLICATION|Exercise MCQs|101 Videos

  • MHT-CET 2017

    NIKITA PUBLICATION|Exercise MCQ|50 Videos

Similar Questions

Explore conceptually related problems

If A=[[2, -1, 1], [1, 2, 1], [-1, 1, 3]] , then |adj(adjA)|=

If A=[[1, -1, 2], [3, 0, -2], [1, 0, 3]] , then (adjA)A=

If A=[[0, 1, -1], [2, 1, 3], [3, 2, 1]] , then (A(adjA)A^(-1))A=

If A=[[-1, -2, -2], [2, 1, -2], [2, -2, 1]] , then adjA=

If A=[[1, -1, 2], [-2, 3, 5], [-2, 0, -1]] , then adjA=

If A=[[1, -2, 2], [0, 2, -3], [3, -2, 4]] , then A(adjA)=

If A=[[1, 2, 3], [1, 4, 9], [1, 8, 27]] , then the value of |adjA| is

If A=[[2, -3], [4, 1]] , then adjA=

A=[[1, 0, 2], [-1, 1, -2], [0, 2, 1]] and adjA=[[5, x, -2], [1, 1, 0], [-2, -2, y]] , then (x, y)=

If A=[[-1, -2, -2], [2, 1, -2], [2, -2, 1]] and kA'=adjA, then k=

NIKITA PUBLICATION-MATRICES-MULTIPLE CHOICE QUESTIONS
  1. If A=[[3, 5, -1], [2, 0, 4], [1,-3, 0]], then [[12, 4, -6], [3, 1, 14]...

    Text Solution

    |

  2. If A=[[1, -1, 2], [-2, 3, 5], [-2, 0, -1]], then adjA=

    Text Solution

    |

  3. If A=[[2, 0, -1], [3, 1, 2], [-1, 1, 2]], then adjA=

    Text Solution

    |

  4. If A=[5a-b3 2] and A adj A=AA^T , then 5a+b is equal to: (1) -1 (2) ...

    Text Solution

    |

  5. If the adjoint of a 3 3 matrix P is 1 4 4 2 1 7 1 1 3 , then the po...

    Text Solution

    |

  6. A=[[1, 0, 2], [-1, 1, -2], [0, 2, 1]] and adjA=[[5, x, -2], [1, 1, 0],...

    Text Solution

    |

  7. If A=[[-1, -2, -2], [2, 1, -2], [2, -2, 1]] and kA'=adjA, then k=

    Text Solution

    |

  8. If A is a unit matrix of order n, then A(adjA) is

    Text Solution

    |

  9. If A=[[3, 4], [5, 7]], then A(adjA)=

    Text Solution

    |

  10. If A=[[1, 2], [3, 4]], then A(adjA)=kI, then k=

    Text Solution

    |

  11. If A=[[cosalpha, sinalpha], [-sinalpha, cosalpha]] and A(adjA)=[[k, 0]...

    Text Solution

    |

  12. For a invertible matrix A, if A(adjA)=[[10, 0], [0, 10]], then |A|=

    Text Solution

    |

  13. If A=[[1, -1, 2], [3, 0, -2], [1, 0, 3]], then (adjA)A=

    Text Solution

    |

  14. If A=[[1, -2, 2], [0, 2, -3], [3, -2, 4]], then A(adjA)=

    Text Solution

    |

  15. If A is a square matrix of order 2times2 and |A|=5, then |A(adjA)|=

    Text Solution

    |

  16. If A is a square matrix of order n, where |A|=5 and |A(adjA)|= 125, th...

    Text Solution

    |

  17. If A is a non-singular matrix of order 3, then adj(adj(A)) is equal to

    Text Solution

    |

  18. If A=[[2, -1, 1], [1, 2, 1], [-1, 1, 3]], then |adj(adjA)|=

    Text Solution

    |

  19. If A=[{:(1,-1,1),(0,2,-3),(2,1,0):}] and B=(adjA) and C=5A, then find ...

    Text Solution

    |

  20. If A=[[1, 2, 3], [1, 4, 9], [1, 8, 27]], then the value of |adjA| is

    Text Solution

    |