- ; Let A be a square matrix such that A? – 7A+ 81 = 0 (where I and 0 are the identity and zero matrices, respectively). Show that (b) í det(A) + 0.

Q: Let C be an nxn matrix that satisfies C2 -3C–2In 0. Show that C is invertible and C=1 = }(31-A)

A:

Q: a) For invertible matrices A, BER"Xn, show that ((AB)")- = (A-)"(B)".

A:

Q: A? 0 0 A =

A:

Q: For A a square matrix such that ATA = I show that det A = ±1.   If A is square and A5 = 0 show…

A: Given, ATA=IdetATA=detIdetATdetA=1  Since, detI=1detA·detA=1    Since, detAT=AdetA2=1detA=±1 This…

Q: Let A and B be m × n matrices that are row equivalent. (a) Prove that rank  A = rank B . (b) Prove…

A: Given :  A and B are m×n matrices with row equivalentNull Space:…

Q: Q2: Let A, B be matrices of size 3x3 such that and AB = A+2I A = -101 21 2 find A, B?

A:

Q: Let A and B be n × n matrices. Prove that if A is nonsingular, then AB is similar to BA.

A: It is given that matrices  A and B are of order (n x n). To show that AB is similar to BA. Since,…

Q: Find matrices A and B in M2(Z) such that AB= 0, but BA+0. 3.

A:

Q: A and B are n X n matrices If Bis invertible, prove that det(B-1AB) = det(A)

A: A and B are n X n matrices and B is invertible.

Q: Prove If A is an invertible matrix and c is a nonzero scalar, then cA is an invertible matrix and…

A:

Q: Prove that the rank of a matrix, every element of which is unity is 1

A: Rank of a matrix refers to the number of linearly independent rows or columns of the matrix.To find…

Q: Let A and B be n × n matrices such that AB = I. Prove that ∣A∣ ≠ 0 and ∣B∣ ≠ 0.

A: Since AB = I, therefore determinant of AB is 1, that is |AB|=1. This implies that AB is invertible.…

Q: For the matrix A , use the Cayley­Hamilton Theorem to compute A -1 and A -2 by expressing each as a…

A: According to Cayley Hamilton theorem, any square matrix satisfies its own characteristics.

Q: Let X be the 3 x 3 matrix such that left-multiplication by X has the same effect as applying the…

A: In this question we have to find the (1, 2) entry of x.

Q: let Q(x)= x12 -8x1x2 -5x22 , then matrix A of the quadratic from is A=?

A: Explanation is given below..

Q: Prove that a matrix A is positive definite if and only if it can be written as A = RTR, where R is a…

A:

Q: Find a formula in terms of k for the entries of A, where A is the diagonalizable matrix below. 0. A…

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Q: Let A be a nonsingular 4 x 4 matrix such that A = -2, then AT adj(A ) Select one: O True O False 17

A: properties of the determinant

Q: Let A be a 3 x 3 matrix such that det(A) = 2. Evaluate det(Aª) and det(2A).

A: Recall the following. If A is a n×n matrix and m be any positive scalardet k A=kndet Adet Am=det Am

Q: Show that if A is an n x n matrix, then A" can be written as a linear combination of the matrices I,…

A: Cayley-Hamilton Theorem:- Every square matrix satisfies its own characteristic equation.

Q: Let A and B be square matrices of order 2 such that |B| = 4 .What is ( AB) '

A: To see 2nd step

Q: Prove that for any matrix A ∈ Mm×n(F), (R(LA∗))⊥= N(LA).

A: The objective is to prove that

Q: Show that if A is an orthogonal matrix, then det(A) = ±1.

A: Given If A is an orthogonal matrix. To show det(A) = ±1

Q: let A and B be n ×n invertible matrices. Prove that AB invertible and (AB)−1 = B−1A−1.

A: Let A and B be n×n invertible matrices, with inverses A–1 and B–1, respectively. Consider their…

Q: Find two 2 × 2 matrices A such that A2 = I.

A:

Q: ?) A is an n x n matrix, such that 2A3 – 4A? + 6A – 21 = 0 (where I is the identity matrix and 0 is…

A:

Q: Let A be a m xn matrix with columns c1, ... , en. Prove that {c1, ..., cn} is independent if and…

A: To prove  c1,c2,...cn is independent if and only if null A=0

Q: Let A be a square matrix such that A2 = 0. Prove that (Af)2 = 0

A: Given that A is a square matrix and A2=0. In order to prove (At)2=0 following theorem are used.…

Q: Let A be a 3 x 3 matrix such that 3a(1)- 2a(2)+7a(3)=0. Is A nonsingular? Explain.

A: A is singular matrix if rank is not full

Q: snip

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Q: Let A be the 2 x 3 matrix with entries aij = (i – 1)(j+ 1). Which of the following is the matrix A?

A: A be a 2×3 matrix. This means A2×3 . entries of matrix A are ai,j=(i-1)(j+1)

Q: Let A and B be equivalent square matrices. Prove that A is nonsingular if and only if B is…

A: Given, A and B are equivalent square matrices. Let P be any non singular matrix of the same…

Q: Find two non zero matrices A and B such that AB = 0. %3|

A: Find the two matrix which satisfy the given condition

Q: Let A = CD, where C and D are n × n matrices and C is invertible. Prove that the matrix product DC…

A: A = CD, where C and D are n × n matrices, and C is invertible. We need to Prove that the matrix…

Q: Prove that the matrices and a a a 0. a 3. a are Similar ( These 2 matrices are not deagonalısable)

A:

Q: Show that if A is an orthogonal matrix, then det(A) = +1.

A: To prove, detA=±1

Q: 3. If A is a nonsingular matrix, then A' is nonsingular and its inverse is (A')1 = (A') '. Prove it!

A: A matrix A is said to be invertible if and only if  det(A) is not equal to zero i.e.  |A| ≠ 0

Q: Find a non-zero 2 × 2 matrix A such that A2 = A =

A: We have to find a A matrix of 2x2 such that, A2  = 0000  So let suppose a matrix    Satisfy the…

Q: Let A be a nonsingular 4 x 4 matrix such that |A-1| = -2, then AT.adj(A-}) Select one: O True O…

A:

Q: Find the inverse of the matrix A using row operation if A is a non-singular matrix, where, -1] -1…

A: The given matrix is: A=-11-10-1012-2 It is given that, A is a non-singular matrix. It means the…

Q: 16. Prove that for any square matrix A, ||A||ž E ||A* A||2.

A: Given: A is a square matrix.

Q: Let A and B be n x n matrices and c be a scalar. Prove that, if B is obtained by multiplying a row…

A:

Q: Generalize the result by proving that, for any comfortable non-singular matrices A,B and C the…

A: Consider the given information. ABC-1=C-1B-1A-1 Multiply by pre and post C.…

Q: Let A be a nonsingular 4 x 4 matrix such that A = -2, then adj(A) - Select one: True False

A:

Q: Determine whether A is similar B .If A ∽B, give an invertible matrix P such that P-1 AP = B.

A: The given matrices are A=110011001 and  B=110010001. Here, it is observed that the matrices A and B…

Q: Let A be a nilpotent matrix (that is, Am = 0 for some m > 1). Prove that if A is diagonalizable,…

A: Consider a nilpotent matrix A. So Am=0 for some m>1.

Q: Find all 2 x 2 matrices A of the form a -4 A = %3D 9. where a and b are real numbers, such that =-A.

A: Given matrix is: A=a-41b A-1=Adj(A)A                       (1) Find determinant of matrix A |A|=ab+4…

Q: If A and B are invertible matrices and c is any scalar, then which of the following does not hold?

A: A and B are invertible matrices then  (AB) -1  = B-1 A-1

Q: a. Prove that if A and B are n xn non-singular matrices, then (AB)-1 = B-'A-1.

A: If A and B are n x n non-singular matrices then prove that (AB)-1=B-1A^-1

Q: Is it true or false? |A+ B" |=| AT + B[T for any nxn matrices A and B. Birini seçin:

A: We are asked to find the statement is true or false.