prove that (2,3),(-4,-6) and (1,3/2) do not form a triangle
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Points which are collinear do not form a triangle.
Also, if the area of the triangle formed is zero, the points do not form a triangle i.e. the points are collinear.
Also, if the area of the triangle formed is zero, the points do not form a triangle i.e. the points are collinear.
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