Matrices

Welcome to the "Matrices" category on Questions LLC! Whether you are a student grappling with linear algebra or a curious individual looking to enhance your knowledge on matrices, you have come to the right place. This category is specifically designed to provide you with a comprehensive resource for all your matrix-related inquiries. From concepts and properties to operations and applications, our community of experts and enthusiasts are here to help elucidate any questions you may have. So, delve into the world of matrices and unlock the power of this fundamental mathematical tool with us!

Questions (226)

For a vector $\bold{v}$, let $\bold{r}$ be the reflection of $\bold{v}$ over the line\[\bold{x} = t \begin{pmatrix} 2 \\ -1
1. 4 answers
2. asked by Bob
3. 1,390 views
Find the $2 \times 2$ matrix $\bold{A}$ such that\[\bold{A} \begin{pmatrix} 1 \\ 0 \end{pmatrix} = \begin{pmatrix} 1 \\ 2
1. 5 answers
2. asked by Zheng
3. 3,236 views
Matrices Quick Check2 of 52 of 5 Items Question Use the table to answer the question. Brain Size (g) Body Size (kg) M= Badger 53
1. 1 answer
2. asked anonymously
3. 26 views
Matrices Quick Check3 of 53 of 5 Items Question Recognize which statement correctly describes the matrix.
1. 1 answer
2. asked anonymously
3. 52 views
Matrices Quick Check5 of 55 of 5 Items Question Which statement correctly describes the matrix? R=[428101580495] (1 point)
1. 1 answer
2. asked anonymously
3. 57 views
Matrices Quick Check2 of 52 of 5 Items Question Use the table to answer the question. Brain Size (g) Body Size (kg) M= Badger 53
1. 1 answer
2. asked anonymously
3. 56 views
Subtract the matrices. Which response is the difference in the values in the first row, second column?[392515281921]−[24162322
1. 3 answers
2. asked anonymously
3. 70 views
what is the solution of the matrix equation?[9,4,2,1] x = [-9,-6,-1,-8]
1. 1 answer
2. asked anonymously
3. 6 views
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
1. 1 answer
2. asked by LEON
3. 463 views
clockwise rotation matrix example
1. 7 answers
2. asked anonymously
3. 58 views
Using a row operation, compute the inverse of the matrix A= ( 1 1 10 2 3 5 5 1)
1. 2 answers
2. asked by Joseph Anyanwu
3. 92 views
What is the dimension of the space of 2 x 2 matrices? Give a basis for this space. Answer the same question for the space of n x
1. 2 answers
2. asked by Ayansa Dabesa soboka
3. 53 views
Find the dimensions of the followingThe space of n x n matrices all of whose elements are 0 except possibly the diagonal
1. 2 answers
2. asked anonymously
3. 79 views
What is the dimension of the space of 2 x 2 matrices? Give a basis for this space. Answer the same question for the space of n x
1. 2 answers
2. asked anonymously
3. 52 views
An n \times n matrix \mathbf{A} is invertible if and only if \mathbf{A} has full rank, i.e. \mathrm{rank}(\mathbf{A}) = n.Which
1. 2 answers
2. asked anonymously
3. 65 views
For a given square matrix A the predicted values of matrix B are:predicted B=A(A'A)^(-1)A'B why is the matrix C=A(A'A)^(-1)A' an
1. 3 answers
2. asked by Lisa
3. 635 views
A video games shop is analyzing its sales performance using matrices. Matrix A contains the unit sales data for each product
1. 3 answers
2. asked by Chris
3. 1,377 views
Let $\bold{w} = \begin{pmatrix} 2 \\ -1 \end{pmatrix}$. There exists a $2 \times 2$ matrix $\bold{P}$ such that\[\text{proj}_{\b
1. 4 answers
2. asked by Bob
3. 1,485 views
Find all $2 \times 2$ matrices $\bold{A}$ that have the property that for any $2 \times 2$ matrix $\bold{B}$,\[\bold{A} \bold{B}
1. 3 answers
2. asked by Bob
3. 3,615 views
Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible, find a matrix C such that[A^-1|0 ] [C |A^-1] is the inverse of
1. 1 answer
2. asked by James
3. 781 views
1)Solve the matrix:[2x] [14]for x[3y]=[12] answer=7 2)V[3 1] [0 2] [-4 5].The dimensions of matrix V. answer=3x2 3)The first row
1. 1 answer
2. asked by erin
3. 606 views
Find the sum[1 4] [0 0] [0 3] + [0 0] A - [1 4] [0 3] B - undefined C - [0 0] [0 0] D - [1 0] [4 3]
1. 4 answers
2. asked by Ana
3. 1,277 views
If matrix A = [ 0 1 , -1 1]find the value of p and q such that (pl+qA)^2 =A.
1. 4 answers
2. asked by Kaur
3. 1,308 views
Can a matrix have a two digit number? I have to add the matrices[3 4] +[2 7][7 6] +[3 8] Sorry this is the only way I know haw
1. 4 answers
2. asked by JaneLee
3. 1,649 views
Can someone check my answer?Given matrices A,B, and C are all 2 x 2, determine whether the equation is true for the given
1. 4 answers
2. asked by Natti
3. 1,138 views
Quiz answers for algebra 2b unit 5 lesson 1 adding and subtracting matrices. Please help!!!
1. 3 answers
2. asked by Isabel
3. 475 views
1) What is the dimension of AB given A is a 5 × 6 matrix and B is a 6 × 3 matrix?for the second questions, it is a fill in a
1. 4 answers
2. asked by anonymous
3. 1,429 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. 3 answers
2. asked by lindsay
3. 630 views
Can I get some help with this question?"If C is a 5 x 1 matrix and D is a 3 x 5 matrix, what are the dimensions of DC?"
1. 4 answers
2. asked by Posty
3. 574 views
A matrix P (2 -1 ),Q(a) and R(2).Find the-4 3. b. 1. values of a and b given that PQ=R
1. 3 answers
2. asked anonymously
3. 50 views
Identify the element a21.A= [ 2 16 8 ] [ 4 6 7 ] [ 1 9 5 ] a21 =
1. 1 answer
2. asked by HELP PLS
3. 220 views
Find a 2*2 matrix with lambda=1 and lambda=2
1. 3 answers
2. asked by Mariane
3. 374 views
Find the $2 \times 2$ matrix $\bold{A}$ such that\[\bold{A} \begin{pmatrix} 1 \\ 0 \end{pmatrix} = \begin{pmatrix} 1 \\ 2
1. 3 answers
2. asked by Zheng
3. 504 views
Find the matrix B such that AB=t and A=(3 2)(-1 3) Hence find the point of intersection of the lines 3x+2y=10 and 3y-4x=x
1. 2 answers
2. asked anonymously
3. 39 views
Find the dimensions of the followingA)The space of n x n matrices all of whose elements are 0 except possibly the diagonal
1. 2 answers
2. asked by Ayansa Dabesa soboka
3. 76 views
[3 -6 -3] [x][ x 2 1] -6 -2 3 -1 -3 -2 0 2 to clarify, the [ x 2 1] is a 1*3.......the A matrix is 3*3....and what i think is b,
1. 2 answers
2. asked by lesgo
3. 61 views
Find a non-zero matrix such that⎡ -2 5 ⎤ ⎡ ❏ ❏ ⎤ ⎡ 0 0 ⎤ ⎥ ⎥ ⎥ ⎥ = ⎥ ⎥ ⎣ 4 -10 ⎦ ⎣ ❏ ❏ ⎦
1. 1 answer
2. asked by Sora
3. 99 views
The coefficient matrix of a linear system has four rows and four columns.
1. 1 answer
2. asked by unkown name
3. 197 views
Use a calculator to find the inverse of the orthogonal matrix matrix Q=[ 0 0 1 −1 0 0 0 −1 0 ] and verify Property 1 above.
1. 1 answer
2. asked by waqas1
3. 324 views
Can somebody show I how to use matrices to solve the following. I want to solve for Tab first. I wiill ask 9n other part later.
1. 3 answers
2. asked by Anonymous
3. 220 views
( 0,0,0,10,0,1,0 1,1,0,1 1,1,1,0) How would I draw the adj matrices if i cannot connect c and a and d and b?
1. 1 answer
2. asked by Adedeji Ogunba
3. 290 views
find the minors and cofactors of the matrix[ -3 2 -8 ] 3 -2 6 -1 3 -6
1. 1 answer
2. asked by sophie
3. 287 views
find the values of x and y that will make the matrix equal[x y] 1 9 = [3 5] 1 9 the answer options are a. x=-3 y=-5 b. x=5 y=3
1. 1 answer
2. asked by jessie
3. 351 views
Find all (a) minors and (b) cofactors of the matrix[ -3 2 -8 ] 3 -2 6 -1 3 -6
1. 1 answer
2. asked by laura
3. 361 views
Find the 3x4 matrix associated with the derivative transformation D:P3→P2 with respect to B = { 1, x, x2, x3} and B' = {1, x,
1. 1 answer
2. asked by Peter
3. 355 views
Hi,If it asks you to create a 3x3 matrix that spans R^3 so that there is a solution for every b, how do I go about choosing
1. 1 answer
2. asked by Kylo Ren
3. 393 views
How would I go about solving the following problem? There were different questions with matrices in them, but this one was
1. 1 answer
2. asked by Michaela
3. 467 views
It is not possible to meet exactly the recommendation by applying some combination of the three(3) brands of fertilizer because
1. 1 answer
2. asked by John E. Livinus
3. 351 views
Can someone please help me. I am not sure to work the following matrices.If A^4 = -3 4 -4 5 and A^5= 4 -5 5 -6 What is A? Can
1. 1 answer
2. asked by Katy
3. 318 views
Find the inverse of each of the following orthogonal matrices.A= [1 0 0 0 cos(theta) sin(theta) 0 -sin(theta) cos(theta)]
1. 3 answers
2. asked by kat
3. 447 views

Matrices

Pages