Home
Class 12
MATHS
If A=[(2,-3),(3,4)], show the A^2-6A+17I...

If `A=[(2,-3),(3,4)],` show the `A^2-6A+17I=0.` Hence find `A^-1`

Text Solution

AI Generated Solution

To solve the problem, we need to show that \( A^2 - 6A + 17I = 0 \) for the matrix \( A = \begin{pmatrix} 2 & -3 \\ 3 & 4 \end{pmatrix} \) and then find \( A^{-1} \). ### Step 1: Calculate \( A^2 \) First, we calculate \( A^2 \) by multiplying \( A \) with itself. \[ A^2 = A \cdot A = \begin{pmatrix} 2 & -3 \\ 3 & 4 \end{pmatrix} \cdot \begin{pmatrix} 2 & -3 \\ 3 & 4 \end{pmatrix} ...
Promotional Banner

Topper's Solved these Questions

  • CUET MOCK TEST 2022

    XII BOARDS PREVIOUS YEAR|Exercise Question|49 Videos

Similar Questions

Explore conceptually related problems

If A=[(5,3),(12,7)] , show that A^(2)-12A-I=0 . Hence find A^(-1) .

If A=[{:(3,1),(-1,2):}] , show that A^(2)-5A+7I=O . Hence, find A^(-1) .

If A=[3112], show that A^(2)-5A+7I=0 Hence find A^(-1) .

For the matrix A=[[2,31,2]] show that A^(2)-4A+I=0 Hence find A^(-1)

If A=[(2,-1,1),(-1,2,-1),(1,-1,2)] show that A^(2)-5A+4I=0 Hence find A^(-1)

Show that A=[[2,-3],[3,4]] satisfies the equation A^(2)-6A+17=0. Hence find A^(-1)

Show that A=[[2,-3],[3,4]] satisfies the equation A^(2)-6A+17=0 .Hence find A^(-1)

If A= [[3,1] , [-1,2]] then show that A^2 - 5A+7I =0 Hence find A^(-1)

If A=[[3,1-1,2]],I=[[1,00,1]] and O=[[0,00,0]], show that A^(2)-5A+7I=0 Hence find A^(-1)

If A=[(4,2),(-1,1)] , show that (A-2 I) A-3 I) =0

XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
  1. A card is drawn at random from a well-shuffled pack of 52 cards. Fi...

    Text Solution

    |

  2. Solve the following differential equation : xcosy\ dy=(x e^xlogx+e^x)...

    Text Solution

    |

  3. If A=[(2,-3),(3,4)], show the A^2-6A+17I=0. Hence find A^-1

    Text Solution

    |

  4. Using the properties of determinants, prove that following |(a-b,-c^2,...

    Text Solution

    |

  5. An urn contains 7 red and 4 blue balls. Two balls are drawn at rand...

    Text Solution

    |

  6. Find the equation of the sphere passing through the points (3,0,0), (0...

    Text Solution

    |

  7. Find the equation of the plane which is perpendicular to the plane ...

    Text Solution

    |

  8. A particle starting with initial velocity of 30 m/sec moves with a ...

    Text Solution

    |

  9. Find the value of lambda which makes the vectors vec a ,\ vec b a...

    Text Solution

    |

  10. A ball projected with a velocity of 28 m/sec has a horizontal range...

    Text Solution

    |

  11. Find the resultant of two velocities 4 m/sec and 6 m/sec inclined t...

    Text Solution

    |

  12. Show that a right circular cone of least curved surface and given v...

    Text Solution

    |

  13. Find the point on the curve x^2=8y which is nearest to the point (2...

    Text Solution

    |

  14. Solve the following differential equation : (dy)/(dx)+2y=6e^x

    Text Solution

    |

  15. Form the differential equation of the family of curves y=Acos2x+Bsi...

    Text Solution

    |

  16. Using matrices, solve the following system of linear equations: 2x-y...

    Text Solution

    |

  17. Using elementary transformations, find the inverse of the following ma...

    Text Solution

    |

  18. Verify Lagranges mean value theorem for the following function: "...

    Text Solution

    |

  19. Discuss the continuity of the following function at x = 0 : "f"("...

    Text Solution

    |

  20. Solve the following differential equation: "x"("dy")/("dx")+"y"="x"lo...

    Text Solution

    |