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Mathematics
Mathematics
Problem
- Find a unit vector normal to the plane through the points
(
1
,
1
,
1
)
(1, 1, 1)
(
1
,
1
,
1
)
,
(
−
1
,
2
,
3
)
(-1, 2, 3)
(
−
1
,
2
,
3
)
and
(
2
,
−
1
,
3
)
(2, -1, 3)
(
2
,
−
1
,
3
)
.
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