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Matrices
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Questions (229)
Hi! I'm a little confused on what I'm suppose to do for this problem. Can someone help? Thanks!
Directions: Which element would
1 answer
asked by
Heather
287 views
A matrix P \in \mathbb {R}^{d \times d} is orthogonal (sometimes referred to as a rotation matrix ) if P P^ T = P^ T P = I_ d.
3 answers
asked anonymously
47 views
Let \mathrm{{\boldsymbol X}}_1, \ldots , \mathrm{{\boldsymbol X}}_ n \in \mathbb {R}^ d denote a data set and let
\mathbb {X} =
3 answers
asked anonymously
41 views
Find the variable for the following 3x3 matrix.
|x 3 -1 2 1 -2 4 1 x|
4 answers
asked by
Jenny
354 views
If A=(aij) and B=(bij) are arbitrary square matrices of order 2, show that |AB|=|A||B|?
I don't understand how to start this
2 answers
asked by
Anonymous
526 views
If A is an n × n matrix, then
A = S + K, where S is symmetric and K is skew symmetric. Let A= [1 3 -2;4 2 2;5 1 2] Find the
1 answer
asked by
sam
661 views
I am trying to write a matrix where n=100, and the matrix's first and last number is 2 and all the number in the middle are 1.
1 answer
asked by
Ashley
325 views
what is AB?
A= 3 , 5 B = 4 2 , 8 -7 this is a matrix, but it wont let me put in the brackets
5 answers
asked by
Me and I
373 views
Solve for "x" and "y" given the following matrix equation:
(2x, 0.5y, -2, 1) * (3, -2, 0, 1) = (-24, 19, -6, 5) (the matrices are
3 answers
asked by
Aly
565 views
Find AC
A= 2 3 0 4 1 6 C= 2 3 0 1 1 0
1 answer
asked by
Sarah
258 views
Given the matrix (4 x) has no inverse, find x
( 2 -5)
3 answers
asked anonymously
30 views
I need help in understanding how to multiply the following matrix:
1/4 [ 4 0 -3 1] [12 16 6 -4] [0 -2 5 8]
1 answer
asked by
Lily
283 views
find the dimensions of the matrix
( -1 2 5 0 ) ( -5 0 9 7 ) ( 9 12 8 -1) (8 -5 0 6 )
1 answer
asked by
skyler
303 views
solve for X marticies
2 0 5 4 -1 3 =2 6 x -7
1 answer
asked by
JT
299 views
Let matrix p= [6 -4]
1 0 If where a and b are real numbers, I is a identity matrix and 0 is a null matrix, find a and b.
1 answer
asked by
siti
398 views
The nullspace of a 3 by 4 matrix A is the line through (2,3,1,0)?
a. what is the rank of A and the complete solution to Ax=0? b.
2 answers
asked by
Fatih
551 views
Find an example of 2 by2 matrices with a12 = .5 for which:
a. A^2 = I b. A^-1 = A^T c. A^2 = A By the way, a12 means the first
2 answers
asked by
fatih
495 views
Find x such that the matrix is equal to its own inverse.
3,x -2,-3
1 answer
asked by
mando
797 views
determine whether the product is defined or undefined is defined give the dimensions of the product matrices [1 1 -4 5 6 0] [9 1
3 answers
asked anonymously
37 views
determine whether the product is defined or undefined is defined give the dimensions of the product matrices 1 1 -4 5 6 0 9 1 -7
3 answers
asked anonymously
44 views
Find –5A + 4B%0D%0A%0D%0AA equals%0D%0Astart 3 by 2 matrix%0D%0A1st row%0D%0A1st column 6%0D%0A2nd column 1%0D%0A2nd
3 answers
asked anonymously
60 views
Solve the matrix 2X+2 [[2 -8],[-4 2]] = [[4 -6],[2 -8]]
3 answers
asked anonymously
16 views
matrix[2x,0
4,-y]=matrix[4,0 4,1]
1 answer
asked by
sukhi
222 views
How would I do these Matrices?
1. |1/2 14 10 -8| 2, Let matrix A = [8 -2 4 7 ] Let matrix B = 2A, Find b_22
6 answers
asked by
lizzie
450 views
What element is a location a_23 of matrix A, if
|4 -3 4| 5 0 -6 7 2 -8 I have the answer at -6 Is this correct?
7 answers
asked by
lizzie
286 views
Form a 4 by 3 matrix, B, such that a) bij= i*j b)=(-1)^i+j
3 answers
asked by
Ayansa Dabesa soboka
30 views
matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} matrix{{1, -1, x}} matrix{{0}, {1}, {1}}=0
Find the value of x Don't give me the direct
2 answers
asked by
Akash
1,039 views
determine whether the product is defined or undefined if defined give the dimensions of the product matrix
[4 5 9 -2] [1 7]
3 answers
asked anonymously
47 views
are matrices A and B inverses
A =[-5 -18 2 7] and B=[7 18 -2 -5]
3 answers
asked anonymously
33 views
B-A
A=[[-5,4],[-8,2]] B=[[-2,7,-3],[1,-6,0]]
3 answers
asked anonymously
13 views
Use matrices A and B. Compute B – A, if you can.%0D%0A%0D%0A %0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0A%0D%0AImage with
3 answers
asked anonymously
32 views
Solve the matrix equation.
matrices (1 point) Responses matrix Image with alt text: matrix matrix Image with alt text: matrix
5 answers
asked by
John
63 views
An m X n YOUNG TABLEAU is an m X n matrix such that the entries of each row are in sorted order from left to right and the
4 answers
asked by
Traxx
760 views
If A = (aij ) is a matrix of size 2x3, and if aij = 2i- 3j for all i and j write down A.
2 answers
asked by
Bryce
558 views
Suppose A is a square matrix satisfying the equation A^3 - 2I = 0. Prove that A and (A - I) respectively are invertible. (the
2 answers
asked by
David
725 views
arrary 4 x 36
2 answers
asked by
jared
188 views
i need help with my algebra 2 homework, the section is called using matrices to represent data. here is one of the problems:
-1/2
3 answers
asked by
brittany
737 views
I already know the 3 methods of doing it, but I recently found out about using matrices to solve it.
How exactly do you do that?
7 answers
asked by
Chopsticks
467 views
How do you make that a matrix in the form of
[1 0 A] [0 1 B] ? I have a system, but i missed the lessons on all that matrix
1 answer
asked by
Casey
992 views
What is the determinant of the following matrix?
start 2 by 2 matrix first row first column 5 second column negative 1 second row
3 answers
asked by
John
40 views
What is the determinant of the following matrix?
[5 -1] [8 6] 22 38 32 46
3 answers
asked by
John
34 views
Determine whether the product is defined or undefined. If defined, give the dimensions of the product matrix.
[4 5];[9 -2] [1 7]
3 answers
asked by
John
78 views
Give example of two non-zero matrices A and B such that A^2=0, B^2=0 but
AxB and BxA do not equal zero.
1 answer
asked by
Amanda
339 views
Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form:
a)(A+B)^2 b)(A+B)^3
1 answer
asked by
Amanda
319 views
Choose which of the following are true statements regarding matrices.
a. A matrix with 14 elements is impossible. b. If two rows
3 answers
asked by
.
61 views
what is element a23 (23 is a subscript) in matrix a?
A = 8 -4 -3 3 -9 -5 -8 8 8
3 answers
asked by
.
13 views
THE INVERSE OF MATRIX
R=| 0 -1/4| | 1 3/4| =?
5 answers
asked by
Mary
506 views
Find DE if matrix D= Row 1= -2,4,6 and ROW 2= 5,-7,1 and matrix E= Row 1= 1,-2
Row 2= 0,-4, and Row 3= -3,4 WORK:
2 answers
asked by
Lucy
532 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
32 views
Find the value of "a" if the deteminant of
(6 3) (4 a)IS: a)6 b)3 c)0 d)-12 (the matrix is six above and four below,three above
1 answer
asked by
Keisha
274 views
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Parent Categories (6)
Addition
Algebra
Data Analysis
Linear Algebra
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