Find the unit vector in the direction of the given vector. Write your answer in the indicated form.Let u = . Find the unit vector in the direction of u, and write your answer in component form.

A.
B.
C.
D.

Answer: C

Mathematics

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Provide an appropriate response.Which of the following statements defines f(x) = ??I. For every positive real number B there exists a corresponding ? > 0 such that f(x) > B whenever x0 - ? < x < x0 + ?.II. For every positive real number B there exists a corresponding ? > 0 such that f(x) > B whenever x0 < x < x0 + ?.III. For every positive real number B there exists a corresponding ? > 0 such that f(x) > B whenever x0 - ? < x < x0.