Questions LLC
Login
or
Sign Up
Ask a New Question
Linear Algebra
Page 4
Questions (909)
Given the vectors:
u = [3, 0] v = [-1, 2] a) Express the vector w = [2, 8] as a linear combination of vectors u and v. How do I
3 answers
asked by
Anonymous
947 views
Suppose T is a transformation from ℝ2 to ℝ2. Find the matrix A that induces T if T is:
a) rotation by 5/4π b) reflection
3 answers
asked by
elara
503 views
Suppose T is a transformation from ℝ2 to ℝ2. Find the matrix A that induces T if T is reflection over the line y=−5/3x.
3 answers
asked by
sam
670 views
Write the augmented matrix for the system of linear equations. (Do not perform any row operations.)
4x − y = 9 x + y = 4
3 answers
asked by
Julia
673 views
Matrices are used in many ways that you may not even realize. They are used in most scientific fields
and computer graphics.
4 answers
asked by
Kitty
940 views
Let f : R → R3 be defined by f(x) = <4x,−3x,5x+5>. Is f a linear transformation
4 answers
asked by
Sam
2,199 views
What are three real-world applications for vector projections? Thank you.
3 answers
asked by
Zorba
4,454 views
Find any vector w that is perpendicular to both u = 3j + 4k and v = 2i.
i, j, k are basis vectors. Textbook answer: (0,4,-3) My
5 answers
asked by
luke
1,679 views
Find a formula in terms of k for the entries of A^k, where A is the diagonalizable matrix below.
A= 5 -16 2 -7
4 answers
asked by
Mei
1,104 views
The vector $\begin{pmatrix} k \\ 2 \end{pmatrix}$ is orthogonal to the vector $\begin{pmatrix} 3 \\ 5 \end{pmatrix}$. Find $k$.
I
3 answers
asked by
Zheng
510 views
Given a square matrix M, we say that a nonzero vector v is an eigenvector of M if Mv=kv for some real number k. The real number
4 answers
asked by
katie
891 views
write the following simultaneous equations in the form of AX= B where A,X and B are matrices
11x+6y=6 9x+5y=7 hence write the
4 answers
asked by
Samara
739 views
Use linear combinations to solve the system of linear equations.
5x=4y-30 2x+3y+-12
3 answers
asked by
Sarah
1,379 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
3 answers
asked anonymously
55 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
imusa
266 views
Find a unit vector r such that r x (-6i + 3j + 2k) = 0 vector (null vector)
2 answers
asked by
thankyou!
230 views
Given matrix
[1 2 3| -1] [2 1 -1| 2] [-1 0 5| 7] What will be the new second row after the row operation: R2-2R1+R3? a. [0, -3,
3 answers
asked by
latoya
275 views
find the orthogonal basis for the column space of the matrix [
6 1 −5 2 1 1 −2 6 −2 8 5 7 ]
3 answers
asked by
waqas1
276 views
Find all eigenvalues and eigenvectors of matrix
A=⎡⎣⎢11−2002−101⎤⎦⎥
3 answers
asked by
waqas1
336 views
Find a 2*2 matrix with lambda=1 and lambda=2
3 answers
asked by
Mariane
381 views
Determine the Scalar equation of the plane that passes through the point (2, -4, -3), and contains the vectors a = [-3, 5, -1]
3 answers
asked by
Calchelp
1,063 views
Find the vector projection of the vector 6i+3j+2k onto thevector 3i-2j+4k.
3 answers
asked by
Anonymous
602 views
Determine vector, parametric, and if possible, symmetric equations of the line through D(-4, 3, 6) and parallel to the z-axis.
Ve
4 answers
asked by
anon
1,400 views
Determine vector, parametric, and if possible, symmetric equations of the line through C(2, -2, 1) and parallel to the line with
2 answers
asked by
nexushockeyHD
756 views
Let L1 be the line passing through the points Q1=(3, −3, 4) and Q2=(−3, 6, 7). Find a value of k so the line L2 passing
4 answers
asked by
dan
2,197 views
Find the angle between the vectors A=6i+8j+10k
B=6i+8j-10k
4 answers
asked by
ABC
1,452 views
Find the $2 \times 2$ matrix $\bold{A}$ such that
\[\bold{A} \begin{pmatrix} 1 \\ 0 \end{pmatrix} = \begin{pmatrix} 1 \\ 2
3 answers
asked by
Zheng
508 views
Apply the 57-degree counterclockwise rotation about the origin to the vectors
[1, 0] and [0,1], then use the image vectors
3 answers
asked by
Anonymous
1,177 views
When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no
3 answers
asked by
Anonymous
1,193 views
A is a diagonalizable matrix.
It has the characteristic polynomial det(lambda*I-A)=(lambda-c)^n. Prove that A=cI.
3 answers
asked by
Alex
544 views
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. x+3y+6z=6 y-4z=0
3 answers
asked by
steph
1,002 views
State and perform the next elementary row operations that should be performed to put the matrix in diagonal form
1 2 -3 3 2 -4 6
5 answers
asked by
Krystal
713 views
1)let w=[3;4] and u=[1;2]
a) find the projection p of u onto w. I found this to be p=[1.32;1.76] b) find a scalar k for which the
4 answers
asked by
samantha
462 views
determine whether the given vector A in M22 belongs to the span (a1,a2,a3) where a1=[1 -1; 0 3]
a2=[1 1; 0 2] a3=[2 2; -1 1] and
3 answers
asked by
sara
862 views
Which of the following homogeneous systems have a nontrivial solution?
5x+ y + 5z =0 −2x + 2y− 4z = 0 4x− 3y + 6z = 0 can
3 answers
asked by
sam
330 views
Determine all values of k for which each pair of vectors is orthogonal.
a) (1,2) and (k,k) b) (1,2,1) and (k,2k,4)
3 answers
asked by
Kyle
392 views
You are given vectors A = 5.0i - 6.5j and B = -2.5i + 7.0j. A third vector C lies in the xy-plane. Vector C is perpendicular to
4 answers
asked by
Charles
2,670 views
For the vectors x=(0,6,-5), y=(2,1,4) and z=(-2,3,-1) what is the value of (2x+y)·(3y-z)? (dot product question and each letter
4 answers
asked by
Liz
397 views
Which matrix equation is equivalent to
3x+2y-5z=20 5x-10y+8z=17 -8+11y-2z=29
3 answers
asked by
April
706 views
How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy
4 answers
asked by
Kim
1,070 views
I have a few questions I need help with!
1. Solve the system by triangularizing the augmented matrix and using back substitution.
3 answers
asked by
Kris
497 views
Show that the functions (c1+c2sin^2x+c3cos^2x) form a vector space. Find a basis of it. What is its dimension?
3 answers
asked by
diamon
444 views
How to find the characteristic equation of this matrix?
4 -5 2 -3
2 answers
asked by
?LL
610 views
Find the inverse of the matrices if they exist. Use the algorithm introduced in this section.
1 2 -1 -4 -7 3 -2 -6 4
3 answers
asked by
Allan
729 views
Can someone please help me with this problem.
Given Matrix Y= 2 -7 4 and -1 1 0 Matrix Z= 3 4 1 4 2 -4 Solve for matrix X.
4 answers
asked by
Sue
479 views
The two lines with the equation r=(1,2,-44)+ t(k+1, 3k+1,k-3) and x=2-3s, y=1-10s, z=3-5s, are given.
a) determine the vaulue for
3 answers
asked by
Raven
687 views
If vector a and b are unit vectors, and |a+b|= root3, determine (2a-5b) dot product(b+3a)
3 answers
asked by
Shawn
991 views
what is the solution of the following linear system?
2y + 6x = -24 y - 13x = -12 a) (0,-12) b) none c) (0,3) d) infinite number
3 answers
asked by
poo
548 views
Solving Multivariable Linear Systems:
3x-5y+5z = 1 5x-2y+3z = 0 7x-y+z = 5 I am confused on how to solve this. I'm supposed to
3 answers
asked by
Chris
577 views
Find an expression for the orthogonal projection of a point v onto a plane P that is characterized by θ and θ0. Write your
2 answers
asked by
Yun Lee
51 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (5)
Algebra
Calculus
Geometry
Math
Mathematics