Home
Class 12
MATHS
If A=((p,q),(0,1)), then show that A^(8)...

If `A=((p,q),(0,1))`, then show that `A^(8)=((p^(8),q((p^(8)-1)/(p-1))),(0,1))`

Text Solution

Verified by Experts

`A^(2)=((p,q),(0,1))((p,q),(0,1))`
`=((p^(2),pq+q),(0,1))=((p^(2), q(p+1)),(0,1))`
`A^(3)=A.A^(2)`
`=((p,q),(0,1))((p^(2), pq+q),(0,1))=((p^(3),p^(2)q+pq+q),(0,1))=((p^(3), q(p^(2)+p+1)),(0,1))`
Similarly,
`A^(4)=((p^(4), q(p^(3)+p^(2)+p+1)),(0,1))` and so on.
`:. A^(8)=((p^(8), q(p^(7)+p^(8)+...+1)),(0,1))=((p^(8),q((p^(8)-1)/(p-1))),(0,1))`
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    CENGAGE|Exercise Exercise 13.1|5 Videos
  • MATRICES

    CENGAGE|Exercise Exercise 13.2|6 Videos
  • MATHMETICAL REASONING

    CENGAGE|Exercise JEE Previous Year|10 Videos
  • METHODS OF DIFFERENTIATION

    CENGAGE|Exercise Single Correct Answer Type|46 Videos

Similar Questions

Explore conceptually related problems

If p+(1)/(p)=q, then for p>0

If 5^(-p)=4^(-q)=20^(r) show that (1)/(p)+(1)/(q)+(1)/(r)=0

Simplify: [(p^(-1)+q^(-1))(p^(-1)-q^(-1))-:((1)/(p^(-1))-(1)/(q^(-1)))((1)/(p^(-1))+(1)/(q^(-1)))](pq)^(2)

Simplify [(p^(-1)+q^(-1))(p^(-1)-q^(-1))div ((1)/(p^(-1))-(1)/(q^(-1)))((1)/(p^(-1))+(1)/(q^(-1)))](pq)^(2)

if p xx q=p+q+(p)/(q) then 8xx2

If the roots of the equation (1-q+(p^(2))/(2))x^(2)+p(1+q)x+q(q-1)+(p^(2))/(2)=0 are equal then show that p^(2)=4q

Simplified form of (p+(1)/(q))^((p-q))(p-(1)/(q))^((p+q))(q+(1)/(p))^((p-q))(q-(1)/(p))^((p+q))

If the lines p_(1)x+q_(1)y=1+q_(2)y=1 and p_(3)x+q_(3)y=1 be concurrent,show that the point (p_(1),q_(1)),(p_(2),q_(2)) and (p_(3),q_(3)) are collinear.

Simplify : (2p^(-8) xx 8q^(-4))/(2p^(-11) xx 8q^(-5))

CENGAGE-MATRICES-Solved Examples And Exercises
  1. If A=((p,q),(0,1)), then show that A^(8)=((p^(8),q((p^(8)-1)/(p-1))),(...

    Text Solution

    |

  2. In which of the following type of matrix inverse does not exist always...

    Text Solution

    |

  3. If both A-1/2Ia n dA+1/2 are orthogonal matices, then (a)A is ortho...

    Text Solution

    |

  4. If nth-order square matrix A is a orthogonal, then |adj(adjA)| is (...

    Text Solution

    |

  5. If P is an orthogonal matrix and Q=P A P^T an dx=P^T Q^1000 P then x^...

    Text Solution

    |

  6. If A is a nilpotent matrix of index 2, then for any positive integer n...

    Text Solution

    |

  7. If Aa n dB are two matrices such that A B=Ba n dB A=A ,t h e n (A^5-B...

    Text Solution

    |

  8. If Z is an idempotent matrix, then (I+Z)^n I+2^n Z b. I+(2^n-1)Z c. ...

    Text Solution

    |

  9. If A is an orthogonal matrix then A^(-1) equals A^T b. A c. A^2 d. non...

    Text Solution

    |

  10. If A^2=1, then the value of det(A-I) is (where A has order 3) 1 b. -1 ...

    Text Solution

    |

  11. Let A be an nth-order square matrix and B be its adjoint, then |A B+K ...

    Text Solution

    |

  12. A=[(a,1,0),(1,b,d),(1,b,c)],B=[(a,1,1),(0,d,c),(f,g,h)],U=[(f),(g),(h)...

    Text Solution

    |

  13. If M is a 3 xx 3 matrix, where det M=1 and MM^T=1, where I is an ident...

    Text Solution

    |

  14. If A is a diagonal matrix of order 3xx3 is commutative with every squa...

    Text Solution

    |

  15. Let S be the set which contains all possible vaues fo I ,m ,n ,p ,q ,r...

    Text Solution

    |

  16. Given a matrix A=[a b c b c a c a b],w h e r ea ,b ,c are real positiv...

    Text Solution

    |

  17. If A is a square matrix of order 3 such that |A|=2,t h e n|(a d jA^(-1...

    Text Solution

    |

  18. Let A=[[3x^2], [1], [6x]],B=[a,b,c]and C=[[(x+2)^2, 5x^2, 2x],[5x^2, 2...

    Text Solution

    |

  19. If A is an idempotent matrix satisfying, (I-0. 4 A)^(-1)=I-alphaA ,w h...

    Text Solution

    |

  20. Let A=([a(i j)])(3xx3) be a matrix such that AA^T=4Ia n da(i j)+2c(i j...

    Text Solution

    |

  21. Let A be the set of all 3xx3 skew-symmetri matrices whose entries are ...

    Text Solution

    |