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Mathematics
Mathematics
Problem
If the point
C
(
k
,
2
k
,
k
−
1
)
C(k,2k,k-1)
C
(
k
,
2
k
,
k
−
1
)
is
7
7
7
units from the origin, find
k
k
k
when
k
>
0
k>0
k
>
0
. a)
4
4
4
b)
−
8
3
-\dfrac{8}{3}
−
3
8
c)
3
3
3
d)
2
2
2
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