Home
Class 12
MATHS
If A=[a("ij")](4xx4), such that a("ij")=...

If `A=[a_("ij")]_(4xx4)`, such that `a_("ij")={(2",","when "i=j),(0",","when "i ne j):}`, then `{("det (adj (adj A))")/(7)}` is (where `{*}` represents fractional part function)

Promotional Banner

Topper's Solved these Questions

  • MATHMETICAL REASONING

    CENGAGE PUBLICATION|Exercise Archives|10 Videos
  • METHODS OF DIFFERENTIATION

    CENGAGE PUBLICATION|Exercise Multiple Correct Answer Type|7 Videos

Similar Questions

Explore conceptually related problems

If A=[a_(ij)] is a 2xx2 matrix such that a_(ij)=i+2j then A will be___

If A = [a_(ij)] is a 2 xx2 matrix such that a_(ij)=i+2j , then A will be

If A=([a_(i j)])_(nxxn) is such that ( a )_(i j)=bar (a_(j i)),AAi ,j and A^2=O , then Statement 1: Matrix A null matrix. Statement 2: |A|=0.

If matrix A=[a_(ij)]_(3xx3) , matrix B=[b_(ij)]_(3xx3) , where a_(ij)+a_(ji)=0 and b_(ij)-b_(ji)=0 AA i , j , then A^(4)*B^(3) is

Consider a matrix A=[a_("ij")] of order 3xx3 such that a_("ij")=(k)^(i+j) where k in I . Match List I with List II and select the correct answer using the codes given below the lists.

If A=[a_(ij)] is a care 2xx2 matrix whose elements are a_(ij)=(1)/(2) (i+2j)^(2) , then A will be____

Let A=([a_(i j)])_(3xx3) be a matrix such that AA^T=4Ia n da_(i j)+2c_(i j)=0,w h e r ec_(i j) is the cofactor of a_(i j)a n dI is the unit matrix of order 3. |a_(11)+4a_(12)a_(13)a_(21)a_(22)+4a_(23)a_(31)a_(32)a_(33)+4|+5lambda|a_(11)+1a_(12)a_(13)a_(21)a_(22)+1a_(23)a_(31)a_(32)a_(33)+1|=0 then the value of 10lambda is _______.

If A=[a_(ij)]_(mxxn) and a_(ij)=(i^(2)+j^(2)-ij)(j-i) , n odd, then which of the following is not the value of Tr(A) (a) 0 (b) |A| (c) 2|A| (d) none of these

If A=[a_(ij)] is a 3xx2 matrix whose elements are given by a_(ij)=3i-2j , then A will be__

If A=[a_(ij)] is a 2xx3 matrix whose elements are given by a_(ij)=(1)/(2) |3i-4j|, then A will be ___

CENGAGE PUBLICATION-MATRICES-All Questions
  1. If A=[[3,-3, 4], [2,-3, 4], [0,-1, 1]] , then a. a d j(a d j A)=A b. |...

    Text Solution

    |

  2. If [[alpha, beta], [gamma, -alpha]] is to be square root of two-rowed ...

    Text Solution

    |

  3. If A=[a("ij")](4xx4), such that a("ij")={(2",","when "i=j),(0",","when...

    Text Solution

    |

  4. Statement 1: Let A ,B be two square matrices of the same order such th...

    Text Solution

    |

  5. If the matrices, A ,B ,(A+B) are non-singular, then prove that [A(A+B)...

    Text Solution

    |

  6. Let A and B be two 2xx2 matrices. Consider the statements (i) A B=0 ...

    Text Solution

    |

  7. The inverse of a skew-symmetric matrix of odd order a. is a symmetric...

    Text Solution

    |

  8. The number of diagonal matrix, A of ordern which A^3=A is a. 1 b. 0 ...

    Text Solution

    |

  9. Find the points at which the function f given by f(x)=(x+1)^3 has loca...

    Text Solution

    |

  10. A is a 2xx2 matrix such that A[[1],[-1]]=[[-1],[ 2]] and A^2[[1],[-1]]...

    Text Solution

    |

  11. If A=[(a,b),(0,a)] is nth root of I(2), then choose the correct statem...

    Text Solution

    |

  12. Let A ,B be two matrices such that they commute, then for any positive...

    Text Solution

    |

  13. The product of matrices A=[[cos^2theta,sinthetacostheta],[sinthetacost...

    Text Solution

    |

  14. If A ,\ B are square matrices of order 3,\ A is non-singular and A ...

    Text Solution

    |

  15. If X=[[0, 1], [0, 0]] , then prove that (p I+q X)^m=p^m I+m p^(m-1)q ...

    Text Solution

    |

  16. Let omega != 1 be cube root of unity and S be the set of all non-sing...

    Text Solution

    |

  17. Let P=[a(i j)] be a 3xx3 matrix and let Q=[b(i j)],w h e r eb(i j)=2...

    Text Solution

    |

  18. If P=[[sqrt(3)/2,1/2],[-1/2,sqrt(3)/2]], A=[[1,1],[0,1]] and Q=PAP^T a...

    Text Solution

    |

  19. The number of 3xx3 matrices A whose entries are either 0or1 and for wh...

    Text Solution

    |

  20. If A=|[alpha,2], [2,alpha]| and |A|^3=125 , then the value of alpha ...

    Text Solution

    |