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Show that the points A(-2 hat i + 3 hat ...

Show that the points `A(-2 hat i + 3 hat j + 5 hat k)` , B(`hat i + 2 hat j + 3 hat k`) and C(`7 hat i - hat k`) are collinear.

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The correct Answer is:
`vec (AB)` and `vec(BC)`.
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