find the value of P,if (-1,P),(2,P),(-3,4) are in collinear
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Let A(-1,3) , B(2,p) , C(5,-1) , if A ,B,C are collinear then Slope of AB = slope of BC (p-3)/( 2+1). = (-1-p)/(5–2) or. (p-3)/3 = (-1-p)/3 or. p-3
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area of triangle for collinear points is zero
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