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Mathematics
Mathematics
Problem
Determine the value of
k
k
k
for which the vectors
u
=
(
k
,
2
,
3
)
\mathbf{u}=(k,2,3)
u
=
(
k
,
2
,
3
)
and
v
=
(
1
,
−
1
,
4
)
\mathbf{v}=(1,-1,4)
v
=
(
1
,
−
1
,
4
)
are perpendicular. a)
0
0
0
b)
10
10
10
c)
−
10
-10
−
10
d)
−
5
-5
−
5
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