Home
Class 12
MATHS
If A is a 2xx2 matrix and absA =1, then ...

If A is a `2xx2` matrix and `absA =1`, then `abs(2A)` is _______

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MATRICES

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|128 Videos

  • RELATIONS AND FUNCTIONS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|86 Videos

Similar Questions

Explore conceptually related problems

If A is a 2times2 matrix with abs[A]=5 , then adj[adjA] is

Find a 2xx2 matrix A where a_(ij)=i+j

If A is square matrix, A', is its transpose, then 1/2(A-A') is a)a Symmetric matric b)a skew-symmetrix matrix c)a unit matrix d)a null matrix

If A,B and C are n xx n matrix and det (A) = 2, det (B)= 3, and det (C ) = 5, then find the value of the det (A^(2) BC^(-1)) .

If A is an invertible matrix of order 2, then det( A^(-1) )=

Suppose A is a matrix of order 3 and B=abs(A)A^(-1)." If "abs(A)=-5 , then abs(B) is equal to : a)1 b)-5 c)-1 d)25

Consider a 2xx2 matrix A=[a_(ij)] where a_(ij)=abs(2i-3j) Write A

Consider a 2xx2 matrix A=[a_(ij)] where a_(ij)=abs(2i-3j) Find A+A^T

Let A be a square matrix of order 2x2 then abs[KA] is equal to

A N EXCEL PUBLICATION-PROBABILITY-QUESTION BANK
  1. Consider the following probability distribution of a random variable X...

    Text Solution

    |

  2. Consider the following probability distribution of a random variable X...

    Text Solution

    |

  3. If A is a 2xx2 matrix and absA =1, then abs(2A) is

    Text Solution

    |

  4. Let A=[[3,1],[-1,2]] find A^-1

    Text Solution

    |

  5. sin^-1[sin((7pi)/6)] is equal to --

    Text Solution

    |

  6. Using the above result prove that tan^-1(frac(1)(2))+tan^-1(frac(1)(...

    Text Solution

    |

  7. If A^T=[[-2,3],[1,2]] and B^T=[[-1,0],[1,2]] then find (A+2B)^T

    Text Solution

    |

  8. If A and B are symmetric matrices of the same order, then prove that (...

    Text Solution

    |

  9. Express A=[[1,7],[2,9]] as a sum of a symmetric and skew-symmetric m...

    Text Solution

    |

  10. The derivative of 2^(sinx) is

    Text Solution

    |

  11. Find dy/dx if x^y = y^x

    Text Solution

    |

  12. If y=ae^(5x)+be^(-5x), show that (d^2y)/(dx^2)-25y=0

    Text Solution

    |

  13. int1/cos^2xdx= a)sec^2x+C b)tan^2x+C c)secx+C d)tanx+C

    Text Solution

    |

  14. Find intxtan^-1xdx.

    Text Solution

    |

  15. Consider the vectors veca=hati-hatj+3hatk and vecb=3hati-7hatj+hatk ...

    Text Solution

    |

  16. Consider the vectors veca=hati-hatj+3hatk and vecb=3hati-7hatj+hatk ...

    Text Solution

    |

  17. Consider the vectors veca=hati-hatj+3hatk and vecb=3hati-7hatj+hatk Fi...

    Text Solution

    |

  18. Consider the vectors veca=2hati-3hatj+hatk Find abs(veca)

    Text Solution

    |

  19. Consider the vectors veca=2hati-3hatj+hatk Find lamda if veca is per...

    Text Solution

    |

  20. Consider the vectors veca=2hati-3hatj+hatk. Find a vector parallel t...

    Text Solution

    |