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Mathematics
Mathematics
Problem
Show that the points
P
(
1
,
2
t
+
1
)
P(1,2t+1)
P
(
1
,
2
t
+
1
)
,
Q
(
3
,
4
t
+
3
)
Q(3,4t+3)
Q
(
3
,
4
t
+
3
)
, and
R
(
7
,
8
t
+
7
)
R(7,8t+7)
R
(
7
,
8
t
+
7
)
are collinear for every real number
t
t
t
.
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