Question: Find a nonzero vector u with terminal point Q (3, 0, - 5) such that (a) u has the same direction as v = (4,

Find a nonzero vector u with terminal point Q (3, 0, - 5) such that
(a) u has the same direction as v = (4, - 2, - 1)
(b) u is oppositely directed to v = (4, - 2, - 1)

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