Respond to this Question
Similar Questions

Math (matrices)
No one answered my matrix question. Let me rephrase: Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible and 0 is all zeroes, what is the inverse of the matrix [A0] [BA] (that is a 4x4 matrix represented as 4 2x2
asked by James on November 16, 2006 
LINEAR ALGEBRA
How to prove or disprove (a)if A has a zeronentryonthe diagonal then A is not invertible (b)if Ais not invertible then for every matrix B, AB is not invertible (c)if A is a nonzero 2X2 matrix such that A^2+A=0, then A is
asked by LEON on October 24, 2010 
Algebra
Let A and B be n x n matrices, assume AB is invertible and show that both A and B are invertible. what? AB is invertible > There exists a matrix X such that: (AB)X = 1 But (AB)X = A(BX). So, AY = 1 for Y = BX Also: X(AB) = 1
asked by Ashley on May 31, 2007 
linear algebra
1)If A is an invertible matrix and k is a positive integer, then (A^k)^1 = (A^1)^k note: ^ stand for power, 1 stand for inverse of A 2)If A is an invertible matrix, then (transpose of A)^1 =transpose of(A^1) 3)Prove A^2 = A,
asked by soasi piutau on April 13, 2012 
Linear Algebra
Given the following matrices A and B, find an invertible matrix U such that UA = B: A and B are 4x4 matrix and i have to find U. I was wondering how i would do this ie. the steps. if you could be as detailed as possible that would
asked by Angel on October 11, 2017 
Math
I have a few questions about TMatrix. In excel, I am suppose to work with powered matrices to construct a weighted T matrix, using a scalar of .7. Does this mean I multiply each of the powered matrices by .7? Or do I power the
asked by Lisa on October 13, 2010 
math
verify The set of all 2 × 2 invertible matrices with the standard matrix addition and scalar multiplication is a vector space or not?
asked by tasbeer on October 31, 2017 
Math
Given the following matrix A, find an invertible matrix U so that UA is equal to the reduced rowechelon form of A: You can resize a matrix (when appropriate) by clicking and dragging the bottomright corner of the matrix. A = 3 3
asked by valarie on October 21, 2018 
linear algebra
if: A and B are matrices and A^2 is similar to B^2 Is A guaranteed to be similar to B?  Matrix similarity means that the matrices are identical if one of the matrices is converted to another basis. If matrices C and D are
asked by mathstudent on July 20, 2007 
math
If A^TA is an invertible matrix, prove that the column vectors of A are linearly independent. You know that if statement X implies statement Y then that is equivalent to Not(Y) implies Not(X). You can start by taking the column
asked by mathstudent on January 8, 2007