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Mathematics
Mathematics
Problem
If three points
A
,
B
A, B
A
,
B
and
C
C
C
have position vectors
(
1
,
x
,
3
)
,
(
3
,
4
,
7
)
(1, x, 3), (3, 4, 7)
(
1
,
x
,
3
)
,
(
3
,
4
,
7
)
and
(
y
,
−
2
,
−
5
)
(y, -2, -5)
(
y
,
−
2
,
−
5
)
, respectively and if they are collinear, then find
(
x
,
y
)
(x, y)
(
x
,
y
)
.
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