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If (1, 1, 1) is the centroid of the tria...

If (1, 1, 1) is the centroid of the triangle with vertices (2a, 3, 7), (-4, 3b, -8) and (8, 4, 6c),
find a, b, c.

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The correct Answer is:
`a =(-1)/2, b=(-4)/3, c=2/3`
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