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Elementary Linear Algebra
- Row vectors and column vectors In Exercises 1-4 write a the row vectors and b the column vectors of the matrix. [651]arrow_forwardProof Let A be an nn square matrix. Prove that the row vectors of A are linearly dependent if and only if the column vectors of A are linearly dependent.arrow_forwardProofProve that if A is not square, then either the row vectors of A or the column vectors of A form a linearly dependent set.arrow_forward
- True or False? In Exercises 73 and 76, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text. a If an mn matrix B can be obtained from elementary row operations on an mn matrix A, then the column space of B is equal to the column space of A. b The system of linearity equations Ax=b is inconsistent if and only if b is in the column space of A.arrow_forwardTrue or False In Exercises 85 and 86, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriaste statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text. a If A is a mn matrix and B is a nr matrix, then the product AB is an mr matrix. b The matrix equation Ax=b where A is the coefficient matrix and x and b are column matrices, can be used to represent a system of linear equations.arrow_forwardProof Prove that each statement is true when A and B are square matrices of order n and c is a scalar. a TrA+B=TrA+TrB b TrcA=cTrAarrow_forward
- True or False ? In Exercise 73-76, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If statement is false, provide an example that shows the statement isnt rue in all case or cites an appropriate statement from the text. a The column space of matrix A is equal to the row space of AT. b The row space of a matrix A is equal to the column space of AT.arrow_forwardFinding the Difference of Two Vectors In Exercises 103 and 104, use the program in Exercise 102 to find the difference of the vectors shown in the figure.arrow_forwardlinear algebraarrow_forward
- 8 Which vectors (b₁,b2, b3) are in the column space of A? Which combinations of the rows of A give zero? 1 (a) A = 2 263 0 2 5 (b) A = I 1 2 4 24 8arrow_forwardLinear AlgebraShow calculationsarrow_forward(a) Prove that the column vectors of the matrix A = 1 2 space of the matrix A. (b) Prove that the column vectors of the matrix B = space of the matrix B. 0 2 2 0 are independent. Describe the column 0 2 [1 1 28 2 0 2 ONO ܬ ܣ ܥ 0 are dependent. Describe the columnarrow_forward
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