If the Points (1,5),(k,1) and (4,11) are collinear , then the value of k is
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(1,5)(k,1)(4,1 1)-0
if the points are collinear then area of the triangle is 0
so by using area of triangle formula,
if the points are collinear then area of the triangle is 0
so by using area of triangle formula,
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