Home
Class 12
MATHS
Find the cofactor of a12 in |(2,-3,5),(6...

Find the cofactor of `a_12` in `|(2,-3,5),(6,0,4),(1,5,-7)|`

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

The cofactor of a_13 in {:|(2,-3,5),(6,0,4),(1,5,-7)| is

Find the minor of a_23 in |(2,-3,5),(6,0,4),(1,5,-7)|

find the cofactor of a_(23) in [(3,1,4),(0,2,-1),(1,-3,5)]

Find the minors and cofactors of the elements of the matrix A = [(2,-3,5),(6,0,4),(1,5,-7)]

Find minors and cofactors of the elements of the determinant abs{:(2,-3,5),(6,0,4),(1,5,-7):} and verify a_(11) C_(31) + a_(12) C_(32) + a_(13) C_(33 ) = 0 .

Find the determinants of minors and cofactors of the determinant |{:(2,3,4), (7,2,-5), (8,-1,3):}|

Find minors and cofactors of the elements of the determinant |[2,-3,5],[6,0,4],[1,5,-7]| and verify that a_11A_31+a_12A32+a_13A_33 = 0

Find the cofactor of (2,3)th entry in the matrix [(1,-2,0),(0,3,6),(5,1,7)]

Find the matrix A so that [(1,2,-3),(0,4,1)] + A = [(3,5,6),(-1,0,3)] .

Verify Property 2 for triangle = |[2,-3,5],[6,0,4],[1,5,-7]|

PRADEEP PUBLICATION-DETERMINANTS-EXERCISE
  1. For what value of x is the matrix [(5-x,x+1),(2,4)] singular ?

    Text Solution

    |

  2. Find the minor of a23 in |(2,-3,5),(6,0,4),(1,5,-7)|

    Text Solution

    |

  3. Find the cofactor of a12 in |(2,-3,5),(6,0,4),(1,5,-7)|

    Text Solution

    |

  4. If |(x+1,x-1),(x-3,x+2)|=|(4,-1),(1,3)| find the value of x.

    Text Solution

    |

  5. Write the value of Delta = |(x+y, y +z , z +x),(z, x,y),(-3,-3,-3)|

    Text Solution

    |

  6. If A is a 3xx3 matrix and |3A | = k |A|, then write the value of k.

    Text Solution

    |

  7. For what value of 'k', the system of linear equations : x+y+z=2,2x+y...

    Text Solution

    |

  8. Evaluate the determinants in exercises 1 to 2. |(2,4),(-5,-1)|

    Text Solution

    |

  9. Evaluate the determinants in exercises 1 to 2. |(cos theta, - sin th...

    Text Solution

    |

  10. Evaluate the following determinants: {:|(x^2-x+1,x-1),(x+1,x+1)|

    Text Solution

    |

  11. If A =[{:(1,2),(4,2):}], then show that | 2A| = 4|A|.

    Text Solution

    |

  12. If A = [[1,0,1],[0,1,2],[0,0,4]] then show that |3A| = 27|A|

    Text Solution

    |

  13. Evaluate the following determinants: {:|(3,-1,-2),(0,0,-1),(3,-5,0)|

    Text Solution

    |

  14. Evaluate the determinant : |[3,-4,5],[1,1,-2],[2,3,1]|

    Text Solution

    |

  15. Evaluate the determinant : |[0,1,2],[-1,0,-3],[-2,3,0]|

    Text Solution

    |

  16. Evaluate the determinant Delta = abs{:(2,-1,-2),(0,2,-1),(3,-5,0):}.

    Text Solution

    |

  17. If A = [{:(1,1,-2),(2,1,-3),(5,3,-9):}], find |A|.

    Text Solution

    |

  18. Find values of x, if : |[2,4],[5,1]| = |[2x,4],[6,x]|

    Text Solution

    |

  19. Find the value of x, if |{:(2,3),(4,5):}|=|{:(x,3),(2x,5):}|.

    Text Solution

    |

  20. If |[x,2],[18,x]| = |[6,2],[18,6]|, then x is equal to:

    Text Solution

    |