Home
Class 12
MATHS
If A=[(4,5,6),(3,-1,4),(0,1,2)] then min...

If `A=[(4,5,6),(3,-1,4),(0,1,2)]` then minor `M_(23)` of matrix `A'` is

A

`-2`

B

4

C

3

D

1

Text Solution

Verified by Experts

The correct Answer is:
A
Now `A'=[(4,5,6),(3,-1,4),(0,1,2)]'=[(4,3,0),(5,-1,1),(6,4,2)]`
`:.` Minor `M_(23)=|(4,3),(6,4)|=16-18=-2`
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MISCELLANEOUS PROBLEMS|49 Videos

  • MATRICES

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|18 Videos

  • MATHEMATICAL LOGIC

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|22 Videos

  • MHTCET 2007

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MATHEMATICS|50 Videos

Similar Questions

Explore conceptually related problems

If Delta = |(5,3,8),(6,0,4),(1,2,3)| then the minor of the element a_(21) is

If A=[{:(1,2,3), (0,4,2),(0,0,6):}] , then the minor of the element a_(31) is

Express the matrix A={:[(2,-3,4),(-1,4,3),(1,-2,3)]:} as the sum of a symmetric and a skew symmetric matrix

If [(2,1),(7,4)]A[(-3,2),(5,-3)]=[(1,0),(0,1)] then matrix A equals

Let A+2B=[{:(2,4,0),(6,-3,3),(-5,3,5):}] and 2A-B=[{:(6,-2,4),(6,1,5),(6,3,4):}] , then tr (A) - tr (B) is equal to (where , tr (A) =n trace of matrix x A i.e. . Sum of the principle diagonal elements of matrix A)

If A=[(2,3),(4,6)] , then A^(-1)=

If A=[(1, 0,0),(0,1,0),(a,b,-1)] and I is the unit matrix of order 3, then A^(2)+2A^(4)+4A^(6) is equal to

If A=[(2, 0,-3),( 4, 3, 1),(-5, 7, 2)] is expressed as the sum of a symmetric and skew-symmetric matrix, then the symmetric matrix is (a) [(2, 2,-4 ),(2, 3, 4),(-4, 4, 2)] (b) [(2, 4,-5),( 0, 3, 7),(-3, 1, 2)] (c) [(4, 4,-8),( 4, 6, 8),(-8, 8, 4)] (d) [(1, 0 ,0 ),(0 ,1 ,0),( 0, 0, 1)]

In the matrix A= [(2,-1,3),(4,6,1) ] ,write the order of the matrix

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MATRICES-MHT CET CORNER
  1. If A=[(4,5,6),(3,-1,4),(0,1,2)] then minor M(23) of matrix A' is

    Text Solution

    |

  2. If A=[(1,1,0),(2,1,5),(1,2,1)] then a(11)A(21)+a(12)A(22)+a(13)A(23) i...

    Text Solution

    |

  3. If A=[(2,2),(-3,2)], B=[(0,-1),(1,0)] then (B^(-1)A^(-1))^(-1) is equa...

    Text Solution

    |

  4. If matrix A=[(1,2),(4,3)], such that AX=l, then X is equal to

    Text Solution

    |

  5. The multiplicative inverse of A = [(cos theta,-sin theta),(sin theta,c...

    Text Solution

    |

  6. The value of a for which system of equation , a^3x+(a+1)^3y+(a+2)^3z=0...

    Text Solution

    |

  7. Let A=[(cos theta, -sin theta),(- sin theta,-cos theta)] then the inve...

    Text Solution

    |

  8. If matrix A=[(a,b),(c,d)], then |A|^(-1) is equal to

    Text Solution

    |

  9. If A=[(3,2,4),(1,2,1),(3,2,6)] and A(ij) are the cofactors of a(ij), t...

    Text Solution

    |

  10. A=[(cos theta, -sin theta),(sin theta, cos theta)] and AB=BA=l, then B...

    Text Solution

    |

  11. The inverse matrix of A=[(0,1,2),(1,2,3),(3,1,1)] is

    Text Solution

    |

  12. The solutiion of (x,y,z) the equation [(-1,0,1),(-1,1,0),(0,-1,1)][(x)...

    Text Solution

    |

  13. For the system of equaltions : x+2y+3z=1 2x+y+3z=2 5x+5y+9z=4

    Text Solution

    |

  14. If A=[(cos^(2)alpha, cos alpha sin alpha),(cos alpha sin alpha, sin^(2...

    Text Solution

    |

  15. If A(alpha)=[(cos alpha, sin alpha),(-sin alpha, cos alpha)] then the ...

    Text Solution

    |

  16. If A=[(1,-1),(2,-1)] and B=[(1,a),(4,b)] and (A+B)^(2)=A^(2)+B^(2). ...

    Text Solution

    |

  17. If A+I=[(3,-2),(4,1)] then (A+I)(A-I) is equal to

    Text Solution

    |

  18. If A=[(x,y,z)],B=[(a,h,g),(h,b,f),(g,f,c)] and C=[(x),(y),(z)] Then ...

    Text Solution

    |

  19. If A=[(-2,4),(-1,2)] then A^(2) is equal to

    Text Solution

    |