A square matrix is called a permutation matrix if it contains a I exactly once in each row and in each column,with all other entries being 0. Examples are I n , and [ 0 0 1 1 0 0 0 1 0 ] . Are permutation matrices invertible? If so, is the inversea permutation matrix as well?
A square matrix is called a permutation matrix if it contains a I exactly once in each row and in each column,with all other entries being 0. Examples are I n , and [ 0 0 1 1 0 0 0 1 0 ] . Are permutation matrices invertible? If so, is the inversea permutation matrix as well?
Solution Summary: The author explains that the permutation matrices and their inverses are invertible. If the left half refleft[AIright] is in the form of identity matrix then the matrix
A square matrix is called a permutation matrix if it contains a I exactly once in each row and in each column,with all other entries being 0. Examples are
I
n
, and
[
0
0
1
1
0
0
0
1
0
]
. Are permutation matrices invertible? If so, is the inversea permutation matrix as well?
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ANALYZING RELATIONSHIPS Describe the x-values for which (a) f is increasing or decreasing, (b) f(x) > 0 and (c) f(x) <0.
y Af
-2
1
2 4x
a. The function is increasing when
and
decreasing when
By forming the augmented matrix corresponding to this system of equations and usingGaussian elimination, find the values of t and u that imply the system:(i) is inconsistent.(ii) has infinitely many solutions.(iii) has a unique solutiona=2 b=1
if a=2 and b=1
1) Calculate 49(B-1)2+7B−1AT+7ATB−1+(AT)2
2)Find a matrix C such that (B − 2C)-1=A
3) Find a non-diagonal matrix E ̸= B such that det(AB) = det(AE)
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HOW TO FIND DETERMINANT OF 2X2 & 3X3 MATRICES?/MATRICES AND DETERMINANTS CLASS XII 12 CBSE; Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=bnaKGsLYJvQ;License: Standard YouTube License, CC-BY