given answer is option 1, please give step wise explanation.
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Correct option is A)
As a,b,c are collinear.
Therefore, point c divides AB in a certain ration, say y=x
Therefore by section formula,
c=
y+x
yb+xa
⇒xa+yb=(x+y)c
⇒xa+yb−(x+y)c=0
As xa+yb+zc=0
Therefore x+y+z=0
i hope it will help you....
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