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Matrix Operations
Page 3
Questions (175)
how do i find the inverse of the matrix
[ 10 9 ] [ 8 -1 ]
3 answers
asked by
Nikki
370 views
Let A be a 5 by 4 matris and suppose that the system Ax=b has a solution. Explain why the solution is unique if and only if the
1 answer
asked by
jen
830 views
The first row of TV.
|4 -5 2| T= |8 -1 3| | 3 1| V= | 0 2| |-4 5| a. [20 -16 9] b. [20 24] c. [4 4] d. not possible
1 answer
asked by
Mel
287 views
[9 4]is the top part of the first matrix, [2 1] is the bottom part of the first matrix. X= is between both matrixes. [-9 -6] is
3 answers
asked by
John
35 views
help!-matrix size is 3x3
clues for the encoding matrix: 1. all entries are one digit and positive 2. a11, a12, a13 are all equal
3 answers
asked by
Stephanie
576 views
show that b is inverse of a
a=[-1 1 -3] [2 1 -1] [2 -1 4] b= [0 1 2] [-1 1 -2 ] [-1 0 1] i got ab = to [1 0 0 ] [0 1 0] [0 0 1]
1 answer
asked by
sandy
290 views
i'm not sure how to go about this one. any help would be appreciated!
find all x's that would make the 2x2 matrix below = to a
1 answer
asked by
corine
333 views
how do you write the matrix:
1 2 -1 | 3 7 -1 0 | 2 3 2 1 | -1 in row echelon form?
2 answers
asked by
mac
837 views
How do you find the inverse of a matrix?
1 answer
asked by
JaneLee
366 views
1)The first row of -3T.
T[4 -5 2] [8 -1 3] answer=[-12 15 -6] 2)The first row of 5P-Q. P[3 1] Q[4 4] [-4 0] [12 21] answer=[11 1]
1 answer
asked by
erin
423 views
What are some of the challenges one might experienced using matrix operations?
The main one in my experience is typing the matrix
1 answer
asked by
jas
478 views
Let A be a 2*3 coefficient matrix ;A
a)If the system Ax=b is consistent is the solution unique? why or why not? explain b) how
1 answer
asked by
jasmine20
349 views
If A and B are both square n x n matrices,
If AB = I, prove BA = I Presumably you have to do this without using the usual
1 answer
asked by
mathstudent
653 views
Given A=[4 9 -2;-3 5 7] and C= [2 -1 -3;1 4 -2], and A+B=C, what is b?
1 answer
asked by
John
35 views
If A^TA is an invertible matrix, prove that the column vectors of A are linearly independent.
You know that if statement X
1 answer
asked by
mathstudent
1,222 views
Hi guys: Can any one please tell me what does this means? Thanks
----------------------------------------------------------------
1 answer
asked by
Kathleen
960 views
Show that if x is a nonzero column vector in R^n, then the nxn matrix:
A = I - 2/||x||^2 * xx^T is orthogonal. Notation key:
1 answer
asked by
mathstudent
877 views
(a) Show that if A is an m x n matrix and A(BA) is defined, then B is an n x m matrix.
(b) Show that if A has a row of zeros and
3 answers
asked by
Chris
1,571 views
4 Find the transpose, minor,cofactor, & adjoint of matrix?
1 1 2 2 4 -3 3 6 -5
1 answer
asked by
Alazer Hagota
35 views
The prices of the systems are: $1200 for System 1, $1500 for System 2, $1600 for System 3, and $1800 for System 4. Write the
2 answers
asked by
Mary
749 views
A message was encoded using the matrix
[7 2 3 1] and you can decode the message 2 numbers at a time in a [1 x 2] matrix. Here are
2 answers
asked by
Anonymous
601 views
Evaluate the determinant of the matrix.
[-4 5 6 0 4 4 -2 -5 4]
2 answers
asked by
Ana
553 views
2 . Put the following macroeconomic model into matrix format using Y, C and T as the variables and find the determinant of the
2 answers
asked by
Asfand
561 views
Tickets to the Senior Class Play cost $3.00 for students, $8.00 for adults, and $5.00 for senior citizens. At Friday night's
2 answers
asked by
Sam
536 views
What does it mean to have two matrix variables written vertically inside parentheses?
In other words, if A and B are matrices,
2 answers
asked by
sergei
537 views
If two matrices are known and are inverse of each other.How can we use these matrices to find the point of intersections for the
3 answers
asked by
Asfand
527 views
Find the $2 \times 2$ matrix $\bold{A}$ such that
\[\bold{A} \begin{pmatrix} 1 \\ 0 \end{pmatrix} = \begin{pmatrix} 1 \\ 2
2 answers
asked by
Zheng
512 views
This is a matrix question.
R is the matrix (3r 1) (s 2s) 1. State, in terms of s and r the determinant of R 2. If r=1/3 and s=4
1 answer
asked by
lindsay
521 views
I having serious problems trying to solve this equation please help me
find the product matrix for this input-output and demand
2 answers
asked by
JC
471 views
determine the dimensions of each matrix product
A X B 2X3 3X5 G X C 4X7 7X1
2 answers
asked by
tyler
490 views
Let A,B and C be matrices such that
A=(1 2 3 1 2 3) , B=(1 2 2 4 2 3) and C=AB. What is the sum of all the elements (entries) of
1 answer
asked by
OIan
448 views
Given A = (X-2 1 )
2 X-3 is a singular matrix,find the value of x
1 answer
asked by
ceasar
447 views
Pivot the system about the element in row 2, column 1.
–5 5 –7 10 4 4
1 answer
asked by
Leah
421 views
write and row reduce the augmented matrix to find the general solution.
x + y - z = 7 2x - y - 5z = 2 -5x + 4y + 14z = 1 3x - y -
1 answer
asked by
Amy
433 views
If A=[31−24] and B=[03−12] . what is AB?
1 answer
asked by
hj
12 views
Does the matrix A =
2 1 5 4 have an inverse? If so, what is it?
1 answer
asked anonymously
13 views
If A=(1 2) B=(2 1)
(-2 3). (2 3) and C=(-3 1) (2 0). Verify that (AB)C= A(BC) and A(B+C)= AB+AC
1 answer
asked anonymously
14 views
If A={1 2} B={2 1} C {-3 1}
{-2 3 } { 2 3} {2 3} Verify that ABC=A(BC) And A(B+C)=AB+AC
1 answer
asked anonymously
19 views
How to solve a matrix
1 answer
asked anonymously
14 views
Use the table to answer the question.
Test 1 Test 2 Test 3 T= Kinley 74 99 93 Paul 65 85 96 Jasmine 88 85 84 Sonya 84 96 92 Leon
1 answer
asked anonymously
13 views
Matrices Practice
Complete this assessment to review what you've learned. It will not count toward your grade. 3 of 53 of 5 Items
7 answers
asked anonymously
45 views
V=[ 1 2 3 4 5]
[9 4 3 2 7 ] [3 1 6 8 0] Matrix V has the dimensions × .
1 answer
asked by
bussingbunny00
10 views
Add matrix M and matrix N.
M=⎡⎣⎢124−9⎤⎦⎥ N=⎡⎣⎢872⎤⎦⎥ (1 point) Responses M+N=[2011 −7] upper M plus
3 answers
asked by
.
41 views
(-2 2 + (6 3
-3 -2 5 -4 -3 1 ) 1 1)
1 answer
asked anonymously
7 views
Operations with Matrices Quick Check
4 of 54 of 5 Items Question Multiply the matrix by the scalar 0.25. Find the element in the
1 answer
asked anonymously
49 views
Subtract the matrices. Which response is the difference in the values in the first row, second column?
[392515281921]−[24162322
1 answer
asked anonymously
60 views
Subtract the given matrices, if possible.
[ 56 39 ] [ 44 63 ] - [ 45 67 ] [ 38 52 ]
1 answer
asked anonymously
8 views
Add matrix M and matrix N . M= 12,4,9 N= 8,7,2
1 answer
asked by
poop
8 views
Subtract the matrices . Which response is the difference in the first row, second column. [ 39 15 19 25 28 21] - [24 23 17 16 22
1 answer
asked by
poop
12 views
using the matrix what is the value of T4,3
1 answer
asked by
Aniaya
9 views
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Parent Categories (15)
Algebra
C programming
Calculations
Data Analysis
Eigenvalues and Eigenvectors
Equations and Operations
Geometry
Linear Algebra
Linear Transformations
Math
Mathematics
Mathematics and Computation
Mathematics and Statistics
Matrices
Statistics