Home
Class 12
MATHS
Let A ,B be two matrices such that they ...

Let `A ,B` be two matrices such that they commute. Show that for any positive integer `n ,` `A B^n=B^n A`

Text Solution

AI Generated Solution

To show that if matrices \( A \) and \( B \) commute, then for any positive integer \( n \), \( A B^n = B^n A \), we can use mathematical induction. Here is the step-by-step solution: ### Step 1: Base Case We start with the base case where \( n = 1 \). \[ A B^1 = A B \] ...
Promotional Banner

Topper's Solved these Questions

  • ADJOINTS AND INVERSE OF MATRIX

    RD SHARMA ENGLISH|Exercise All Questions|181 Videos
  • ALGEBRA OF VECTORS

    RD SHARMA ENGLISH|Exercise All Questions|325 Videos

Similar Questions

Explore conceptually related problems

Let A ,\ B be two matrices such that they commute. Show that for any positive integer n , (A B)^n=A^n B^n

Let A ,B be two matrices such that they commute. Show that for any positive integer n , (i) A B^n=B^n A (ii) (A B)^n=A^nB^n

Let A ,B be two matrices such that they commute, then for any positive integer n , (i) A B^n=B^n A (ii) (A B)^n =A^n B^n

Let A and B are two matrices such that AB = BA, then for every n in N

If A is a square matrix such that |A| = 2 , then for any positive integer n, |A^(n)| is equal to

If A a n d B are two non-singular matrices of the same order such that B^r=I , for some positive integer r >1,t h e n (A^(-1)B^(r-1)A)-(A^(-1)B^(-1)A)= a. I b. 2I c. O d. -I

If A and B matrices commute then

If Aa n dB are square matrices of the same order and A is non-singular, then for a positive integer n ,(A^(-1)B A)^n is equal to A^(-n)B^n A^n b. A^n B^n A^(-n) c. A^(-1)B^n A^ d. n(A^(-1)B^A)^

Statement 1: Let A ,B be two square matrices of the same order such that A B=B A ,A^m=O ,n dB^n=O for some positive integers m ,n , then there exists a positive integer r such that (A+B)^r=Odot Statement 2: If A B=B At h e n(A+B)^r can be expanded as binomial expansion.

If A and B are two matrices such that rank of A = m and rank of B = n, then

RD SHARMA ENGLISH-ALGEBRA OF MATRICES-All Questions
  1. Find the values of x and y if [[x+10,y^2+2y],[0,-4]]=[[3x+4,3],[ 0,y^2...

    Text Solution

    |

  2. For what values of x and y are the following matrices equal? A=[(2x+1,...

    Text Solution

    |

  3. Let A ,B be two matrices such that they commute. Show that for any pos...

    Text Solution

    |

  4. Let A=[[2,3],[-1,2]] and f(x)=x^2-4x+7 Show that f(A)=0 Use this resul...

    Text Solution

    |

  5. If A=[3 5],B=[7 3], then find a non-zero matrix C such that AC=B...

    Text Solution

    |

  6. If A is a square matrix such that A^2=A , show that (I+A)^3=7A+Idot

    Text Solution

    |

  7. Under what conditions is the matrix A^2-B^2=(A-B)(A+B) is true?

    Text Solution

    |

  8. If a is a non-zero real or complex number. Use the principle of mathe...

    Text Solution

    |

  9. If A = [[cos^2theta, costhetasintheta],[costhetasintheta, sin^2theta]]...

    Text Solution

    |

  10. If A and B are square matrices of order n , then prove that A \ a n d ...

    Text Solution

    |

  11. Show that positive odd integral powers of a skew-symmetric matrix are ...

    Text Solution

    |

  12. If A=[(costheta,-sintheta),(sintheta,costheta)], then find the values ...

    Text Solution

    |

  13. If A=d i ag(abc), show that A^n=d i ag(a^nb^nc^n) for all positive int...

    Text Solution

    |

  14. If A=[[costheta,isintheta],[isintheta,costheta]], then prove by princ...

    Text Solution

    |

  15. Let A=[[1,-1, 0],[ 2, 1, 3],[ 1, 2, 1]] a n d B=[[1 ,2, 3],[ 2, 1, 3],...

    Text Solution

    |

  16. If [[xy, 4],[z+6, x+y]]=[[8, w],[0, 6]], write the value of (x+y+z)dot

    Text Solution

    |

  17. If A=[a(i j)] is a skew-symmetric matrix, then write the value of sumi...

    Text Solution

    |

  18. Express the matrix [3-2-4 3-2-5-1 1 2] as the sum of a symmetric and s...

    Text Solution

    |

  19. Show that the elements on the main diagonal of a skew-symmetric matrix...

    Text Solution

    |

  20. If A is a skew-symmetric and n in N such that (A^n)^T=lambdaA^n , wri...

    Text Solution

    |