Finding a Coordinate Matrix In Exercises
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Elementary Linear Algebra
- Find the determinant of the matrix in Exercise 15 using the method of expansion by cofactors. Use a the second row and b the second column. 15. [321456231]arrow_forwardFind the determinant of the matrix in Exercise 16 using the method of expansion by cofactors. Use a the third row and b the first column. 16. [342631478]arrow_forwardRotate the triangle in Exercise 29 counterclockwise 90 about the point (5,3). Graph the triangles. 29. Use the standard matrix for counterclockwise rotation in R2 to rotate the triangle with vertices (3,5), (5,3) and (3,0) counterclockwise 90 about the origin. Graph the triangles.arrow_forward
- Coordinate Representation in M3,1 In Exercises 4952, find the coordinate matrix of X relative to the standard basis for M3,1. X=[121]arrow_forwardFind an orthonormal basis for the solution space of the homogeneous system of linear equations. x+yz+w=02xy+z+2w=0arrow_forwardFinding a Coordinate Matrix In Exercises 19-24, find the coordinate matrix of wrelative to the orthonormal basis Bin Rn. w=(1,2), B={(21313,31313),(31313,21313)}arrow_forward
- Proof 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_forwardCAPSTONE Explain how to determine whether an nn matrix A is diagonalizable using a similar matrices, b eigenvectors, and c distinct eigenvalues.arrow_forward
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