1 Suppose that a 3 x 3 matrix A has det A = 1 and that its cofactor matrix is C = 1 2 |-7 4 2 Find A.

Q: Find the RREF of the matrix -4 1 -3 من که من 2 3 -1 4 -2 3 2

A: to find the row reduced echelon form of -4       31      - 1-3       42       - 23        2

Q: For which value of x is the following matrix not invertible: 1 1 3x A = 3x 3x 3x 3x 3x O 2 4 O1/3 1

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Q: 4. Determine whether the given matrix is invertible without computing its determinant. -3 0 1 3 5 8…

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Q: Some of the entries of the 3 x 3 matrix A are known as A -1 1 If det (A) = -–6 and A-1 find x.

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Q: A = 1 -2 0 -3 -1 -2 0 1 3 3 -2 0 4 4 0 -1

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Q: 1 4 Let A= and let B be an unknown 2×2 matrix. Calculate det B given that 1 2 det(AB)= 32.

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Q: This is a linear algebra problem pretaining to matrix. Please find the cofactor C11(A), C12(A),…

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Q: Solve this matrix question

A: Step 1:Step 2:

Q: Give an example of a non-zero 2 × 2 matrix R which satisfics R² = 0. Suppose that M is an n x n…

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Q: Let A be a 3 x 10 matrix, and let B be m x n. Suppose that B'A' is a 21 x 3 matrix. What is the…

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Q: For each 2 x 2 real matrix A find the canonical form B and an invertible matrix P such that P-1 AP =…

A: A square matrix A of order 2x2 is said to be diagonalizable if there exist an invertiable matrix P…

Q: For every 3 by 3 matrix A and a scalar c, det(c A) = c det(A). True False

A: The statement isFor every 3 by 3 matrix A and a scalar c,

Q: [1 0 1] Q2. Is the matrix A = 0 1 1 defective or diagonalizable? If diagonalizable, write the…

A: We have to solve given problem:

Q: Suppose A is an n x n matrix with A² = A. Show (I – 2A)−¹ = I — 2A.

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Q: Suppose A is a 2 × 2 matrix, where -2 | u = Au = -4 A?u = 4 A³u 2 20 – 20 – 10. The minimal…

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Q: 0 1] ¹-[i J. (we E3.2. (15) Find all 2×2 matrices B that commute with the matrix A= say that the…

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