The vectors u, e, w have the coordinates (-6, 2, 1), (2. -1,0) and (7,-2,-1) respectively relative to the ordered basis e, e, es. Prove that there exists a basis ,ē2. ča in which the vectors have the...

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Extracted text: The vectors u, e, w have the coordinates (-6, 2, 1), (2. -1,0) and (7,-2,-1) respectively relative to the ordered basis e, e, es. Prove that there exists a basis ,ē2. ča in which the vectors have the coordinates (7,2,-6), (-3,-1.3) and (2, 1,-2) respectively, and state the change-of-basis matrix from ey.e2, es to А.4