Home
Class 12
MATHS
If A=[(2,-1),( 3,-2)] , then A^n= [(1, ...

If `A=[(2,-1),( 3,-2)]` , then `A^n=` `[(1, 0),( 0 ,1)]` , if `n` is an even natural number (b) `[(1, 0),( 0, 1)]` , if `n` is an odd natural number (c) `[-1 ,0 ),(0 ,1)]` , if `n in N` (d) none of these

Text Solution

AI Generated Solution

To solve the problem, we need to find the powers of the matrix \( A \) and determine the conditions under which \( A^n \) equals the identity matrix \( I \). Given: \[ A = \begin{pmatrix} 2 & -1 \\ 3 & -2 \end{pmatrix} \] ### Step 1: Calculate \( A^2 \) To find \( A^2 \), we multiply \( A \) by itself: ...
Promotional Banner

Topper's Solved these Questions

  • ADJOINTS AND INVERSE OF MATRIX

    RD SHARMA|Exercise QUESTION|1 Videos
  • ALGEBRA OF MATRICES

    RD SHARMA|Exercise Solved Examples And Exercises|410 Videos

Similar Questions

Explore conceptually related problems

The smallest natural number is (a) 0 (b) 1 (c) -1 (d) None of these

The mean of first n odd natural number is (a) (n+1)/2 (b) n/2 (c) n (d) n^2

The sum of first n odd natural numbers is 2n-1 (b) 2n+1 (c) n^2 (d) n^2-1

If n is an even natural number, then the largest natural number by which n(n + 1)(n + 2) is divisible, is

IF A = [(1,0),(1,1)] then for all natural numbers n A^n is equal to (A) [(1,0),(1,n)] (B) [(n,0),(1,1)] (C) [(1,0),(n,1)] (D) none of these

If A=[(1,2),(0,1)], then A^n= (A) [(1,2n),(0,1)] (B) [(2,n),(0,1)] (C) [(1,2n),(0,-1)] (D) [(1,n),(0,1)]

If n is an even natural number , then sum_(r=0)^(n) (( -1)^(r))/(""^(n)C_(r)) equals

If the sum of first n even natural numbers is equal to k xx the sum of first n odd natural number then k=(1)/(n) b.(n-1)/(n) c.(n+1)/(2n)d .(n+1)/(n)

If A=[(1,a),(0, 1)] , then A^n (where n in N) equals [(1,n a),(0, 1)] (b) [(1,n^2a),(0, 1)] (c) [(1,n a),(0 ,0)] (d) [(n,n a),(0,n)]