Question: Sketch the two position vectors a = 2i - J + 2k and b = 5i + j - 3k.Then find each of the following:

Sketch the two position vectors a = 2i - J + 2k and b = 5i + j - 3k.Then find each of the following:
a. Their lengths
b. Their direction cosines
c. The unit vector with the same direction as a
d. The angle θ between a and b

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