if the point (-3,12),(7,6)&(x,a) are collinear,express x in terms of a
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the given points A(-3,12,B(7,6) and C(x,a) are collinear.
area ∆ABC formed by these points should be zero.
the area of ∆ABC=0
area ∆ABC formed by these points should be zero.
the area of ∆ABC=0
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