Linear Algebra Answers

Questions: 2 049

Answers by our Experts: 1 848

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Search & Filtering

X+Y-Z=4

2X+Z=7

3X-2Y=5


Find the cofactor for given matrix "\\begin{vmatrix}\n 2& 5\\\\\n 7 & -5\n \n\\end{vmatrix}"


Solve the following system of equations using the method of Gaussian Elimination:


2x +8y + 4z=2


2x +5y + z =5


4x+10y-z=1


Find inverse for given matrix A-1="\\begin{bmatrix}\n 5& 4\\\\\n 9& 7\n\\end{bmatrix}"


Solve the following system of linear equations for ๐‘ฅ, ๐‘ฆ, ๐‘ง, ๐‘ก: โˆ’๐‘ฆ+3๐‘ง+2๐‘ฅ+4๐‘ก = 9

๐‘ฅโˆ’2๐‘ง+7๐‘ก =11 ๐‘งโˆ’3๐‘ฆ+3๐‘ฅ+5๐‘ก = 8 ๐‘ฆ + 2๐‘ฅ + 4๐‘ง + 4๐‘ก = 10


Let W={(x,y,z)|x+y+z=0}

a, give a basis for W

b, what is the dimension of W


Show that the set of vectors {(1,1,5),(1,1,3),(1,1,3)} is linear independent or not


Write (12,22,1) as a linear combination of the vectors (0,2,1),(3,0,1),(5,6,0) if possible


Consider the linear eigenproblem, ๐ด๐‘ฅ=๐œ†๐‘ฅ, for the matrix

D=[1 1 2

2 1 1

1 1 3 ]

Solve for the largest eigenvalue by the direct method using the secant method. Let ๐œ†^((0))=5 and ๐œ†^((1))=4 Solve for the eigenvalues by the QR method


Let W be the set of vector space in R3 of the form (a,b, ยฝa-2b) show that W is the sub space of R3