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Mathematics
Mathematics
Problem
For what value of
k
k
k
will the points
A
(
1
,
2
,
3
)
A(1,2,3)
A
(
1
,
2
,
3
)
,
B
(
4
,
k
,
9
)
B(4,\,k,\,9)
B
(
4
,
k
,
9
)
and
C
(
7
,
8
,
15
)
C(7,8,15)
C
(
7
,
8
,
15
)
be collinear?
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