Home
Class 12
MATHS
The inverse of [[3, -2],[-7,5]] is...

The inverse of `[[3, -2],[-7,5]]` is

A

`[[3,-7],[-2,5]]`

B

`[[5,-2],[-7,3]]`

C

`[[5,2],[7,3]]`

D

`[[-3,7],[-2,5]]`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 6

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos
  • SOLVED PAPER 04

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

Similar Questions

Explore conceptually related problems

The inverse of [[-4,3],[7,-5]] is

The inverse of the matrix [[1 , -2],[3 ,4 ]] is

The inverse of [[1,0,0],[0,2,0],[0,0,3]] is

Find the multiplicative inverse of z= 2-3i

Let A = [(1,-1,1),(2,1,-3),(1,1,1)] and (10)B = [(4,2,2),(-5,0,alpha),(1,-2,3)] If B is the inverse of A , then alpha is :

By using elementary operations, Find the inverse of the matrix A= [[2,3],[5,7]]

Using elementary transformations, find the inverse of the matrices [(1,3,-2),(-3,0,-5),(2,5,0)]

Using elementary transformations, find the inverse of the matrix [(2,1),(7,4)]

find the inverse of the matrix [(1,2,5),(2,3,1),(-1,1,1)], using elementary row operations.

The inverse of the matrix [(2,5,0),(0,1,1),(-1,0,3)] is

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 9-Mathematics
  1. If omega is a cube root of unity |(1, omega, omega^(2)),(omega, omega^...

    Text Solution

    |

  2. The roots of the equation |(x-1,1,1),(1,x-1,1),(1,1,x-1)| = 0 are

    Text Solution

    |

  3. The inverse of [[3, -2],[-7,5]] is

    Text Solution

    |

  4. From the matrix equation AB = AC we can conclude B = C provided

    Text Solution

    |

  5. Let A = [[1,2],[0,1]]. Then A^(n) =

    Text Solution

    |

  6. In a triangle ABC if a = 2, B = 60^(@) and C = 75^(@), then b =

    Text Solution

    |

  7. If tan^(-1) 2x + tan^(-1) 3x = (pi)/(4), then x =

    Text Solution

    |

  8. The general solution of tan 2 theta tan theta = 1 is theta =

    Text Solution

    |

  9. cos^(-1).(2)/(sqrt(5)) + tan^(-1).(1)/(3) =

    Text Solution

    |

  10. (1 + i)^(5) + (1 - i)^(5) =

    Text Solution

    |

  11. The smallest integer n such that ((1 + i)/(1-i))^(n) = 1 is

    Text Solution

    |

  12. cos[tan^(-1) {sin(cot^(-1) x)}] =

    Text Solution

    |

  13. The general value of theta which satisfies the equation (cos theta + i...

    Text Solution

    |

  14. The length of the tangent from the point (1, -4) to the circle 2x^(2) ...

    Text Solution

    |

  15. For the circles x^(2) + y^(2) - 2x + 3y + k = 0 and x^(2) + y^(2) + 8x...

    Text Solution

    |

  16. The equation to the parabola with focus (2, 0) and the directrix x + 3...

    Text Solution

    |

  17. If 2y = 5x + k is a tangent to the parabola y^(2) = 6x then k =

    Text Solution

    |

  18. The length of the latus - rectum of the ellipse (x^(2))/(25) + (y^(2))...

    Text Solution

    |

  19. P is any point on the ellipse 9x^(2) + 36y^(2) = 324 whose foci are S ...

    Text Solution

    |

  20. The product of the perpendiculars from the foci on any tangent to the ...

    Text Solution

    |