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Mathematics
Mathematics
Problem
Using section formula show that the points
(
1
,
−
1
)
(1, -1)
(
1
,
−
1
)
,
(
2
,
1
)
(2, 1)
(
2
,
1
)
and
(
4
,
5
)
(4, 5)
(
4
,
5
)
are collinear.
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