In a cartesian coordinate system, the co...

In a cartesian coordinate system, the coordinates of two points P and Q are (2,3,-6) and (-2,-5,7) respectively, the vector `bar(PQ)` is represented by

`-4hati-8hatj-13hatk`

`-4hati+8hatj-13hatk`

`4hati-8hatj-13hatk`

`-4hati-8hatj+13hatk`

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TARGET PUBLICATION-SCALARS AND VECTORS-Evaluation Test

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