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Mathematics
Mathematics
Problem
The points
A
(
1
,
2
,
3
)
A(1,2,3)
A
(
1
,
2
,
3
)
,
B
(
4
,
5
,
6
)
B(4,5,6)
B
(
4
,
5
,
6
)
and
C
(
7
,
8
,
k
)
C(7,8,k)
C
(
7
,
8
,
k
)
are collinear. Find the value of
k
k
k
. a)
12
12
12
b)
9
9
9
c)
11
11
11
d)
6
6
6
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