Question: 1 . 6 4 Determine a . the angle between the position vectors P and Q ; and Answer: 6 3 . 4 b .

1.64 Determine
a. the angle between the position vectors P and Q; and
Answer:
63.4
b. a unit vector perpendicular to P and Q.
Answer:
0.512i-0.768j-0.384k
Figure P1.64
1 . 6 4 Determine a . the angle between the

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