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# Suppose that a is nonsingular and that there exist

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Unformatted text preview: by Now subtracting the new second row from the first row yields Finally, combine the third row with the second row to obtain Hence 15. Elementary row operations yield ________________________________________________________________________ page 347 —————————————————————————— CHAPTER 7. —— Finally, combining the and rows results in 16. Elementary row operations yield Finally, normalizing the last row results in 17. Elementary row operations on the augmented matrix yield the row-reduced form of the augmented matrix The left submatrix cannot be converted to the identity matrix. Hence the given matrix is singular. 18. Elementary row operations on the augmented matrix yield ________________________________________________________________________ page 348 —————————————————————————— CHAPTER 7. —— 19. Elementary row operations on the augmented matrix yield Normalizing the last row and...
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