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Subjects
Mathematics State Board
Class 9
Coordinate Geometry
Co-ordinate system and Properties of distance
20.
Five marks exercise problems VI
Exercise condition:
5
m.
Determine whether the given set of points in each case are collinear or not.
\((7, -2)\), \((5, 1)\), \((3, 4)\)
Proof
:
Take the given points as \(A\), \(B\) and \(C\), respectively.
AB
=
i
BC
=
i
AC
=
i
i
AB + BC = AC
AB + BC ≠ AC
The given points are
not collinear
collinear
.
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