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Mathematics
Mathematics
Problem
Given
A
(
−
1
,
2
,
5
)
A(-1, 2, 5)
A
(
−
1
,
2
,
5
)
,
B
(
0
,
3
,
1
)
B(0, 3, 1)
B
(
0
,
3
,
1
)
, and
C
(
2
,
−
4
,
0
)
C(2, -4, 0)
C
(
2
,
−
4
,
0
)
, find the measure of
B
A
C
^
\widehat{BAC}
B
A
C
.
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