Q.
If the centroid of triangle whose vertices are (a,1,3),(−2,b,−5) and (4,7,c) be the origin, then thevalue of a, b and c are
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a
-2,-8,-2
b
2,8,-2
c
2,-8,-2
d
7,-1,0
answer is C.
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Detailed Solution
0=a−2+43⇒a=−20=1+b+73⇒b=−8 and 0=3−5+c3⇒c=2
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