2. Two m x n matrices A and B are equal if a,=b, for each i & j. (i.e., the two matrices have same size, and all the corresponding elements are equal). 3. Matrices A & B are said to be conformable in the order AB if, and only if, the number of rows in A is equal to the number of columns in B. 4. Suppose Matrix A is having 4 rows and 3 columns, and Matrix B is having 3 rows and 2 columns. The product size of AB is a 4x 2 matrix. 5. Suppose B is the matrix obtained from an n x n matrix A by multiplying the entries in a row/column by a non-zero constant and adding the result to the corresponding entries in another row/column. Then, det(B) = det(A). %3D 6. Cramer's rule is not applicable if the system is homogeneous. 7. Integer Powers of a complex number can also be obtained by multiplying a complex number in rectangular form by itself n times. 8. If a matrix is augmented, then any row operation performed to the augmented matrix must include the entries augmented to the original one. 9. The difference between a complex number z and its conjugate is a pure imaginary number. 10. If a complex number z is situated along the real x axis, then the complex conjugate of our complex number z remains the same.

Q: 2. Let A be a square matrix with real or complex entries. Show that if A is normal and upper…

A: Definition of normal matrix:

Q: 2. Prove that a square matrix has no inverse if two of its columns are equal. (Use only material we…

A: 2 We have to prove that a square matrix has no inverse if two of its column are equal. Property of…

Q: Consider the matrices 4 2 1] 5 4 B = 2 2 3 1 A = X = -3 0 1 2 0 8 Which of the following matrix…

A: We have  Matrix multiplication AB defined only if Number of columns of A = Number of rows of B

Q: Let Q be a 5 x 5 matrix with 5 pivot positions. a. Are the rows of Q linearly independent? No Yes…

A:

Q: 1. Express 401 0 1 0 40 1 3 5 as a linear combination of the columns of the matrix on the left, and…

A:

Q: 3. Give an example of two 2 × 2 matrices A and B for which (AB)² # A²B².

A: To prove above equation with an example

Q: Let A� and B� be matrices. Select all items below that apply. A. If A� and B� are row equivalent,…

A: A. True. If two matrices are row equivalent, it means that they can be transformed into each other…

Q: 6. Let A, B, and A+B all be square invertible matrices of the same size. Show -1 that (A+B) = A(A+B)…

A: We need the property (CD)-1 =D-1 C-1  For any two matrices C and D.

Q: Suppose A= #B+C where B is symmetric and C is skew-symmetric matrices, 56 B = b12 then byn %3D O a.…

A:

Q: 8. Let 2x2 matrices A = O a 8, b=5 Oa-6, b-7 none of these a -328-321AB - 2. then If = 4 с d Oa-5,…

A:

Q: 1. For each the product AB is defined. If it is, find AB. b.) pair of matrices A and B below find…

A:

Q: If A and B are m × n matrices such that Col(A) and Col(B) are isomorphic, then the RREF of both…

A: If two vector space is Isomorphic then the dimension of the vector space must be same. The dimension…

Q: Which do you find easier? 3 1 (₁ - ( ) -- (3) (a) A = B = -1 1 1₁- (b) A = ()--(²3) B = -2 15 2 2-2

A:

Q: 1. v₁ = (4, −2, 6, −4), V₂ = (6, −3, 9, −6)

A:

Q: n If A, B, and C are 2x2 matrices; and det(A) = 5, det(B) = 1, and det(C)=-4 then compute:…

A: Given A, B, C are 2x2 matrix. det(A)=5, det(B)=1 and det(C)=-4. We have to find, det2CTB2C-1ATC-1.