## Write each vector as a linear combination of the vectors in s. s = {(2, 0, 7), (2, 4, 5), (2, −12, 13)} (a) u = (−1, 7, −7)

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## Answers ( No )

The vectors in s are linearly dependent, but you can make u from

.. (2, 4, 5)/16 -9*(2, -12, 13)/16 = (-1, 7, -7)