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lf origin is centroid of triangle with v...

lf origin is centroid of triangle with vertices (a, 1 , 3), (- 2, b, -5) and (4, 7, c), then (a, b, c) `equiv`

A

(2, 2,8)

B

(- 2,8,2)

C

(- 2,-8,- 2)

D

(-2, -8,2)

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The correct Answer is:
D
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MARVEL PUBLICATION-VECTORS-TEST YOUR GRASP
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  18. If bara=2i+3j-k,barb=-i+2j-4k and barc=i+j+k, then (baraxxbarb).(barax...

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