Find a unit vector in the direction of v and in the direction opposite of v. v = (-7, 2, 9) (a) in the direction of v (b) in the direction opposite of v
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$$||v|| = \sqrt{(-7)^2 + 2^2 + 9^2} = \sqrt{49 + 4 + 81} = \sqrt{134}$$ Show more…
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