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Mathematics
Mathematics
Problem
A
(
3
,
2
,
0
)
A(3, 2, 0)
A
(
3
,
2
,
0
)
,
B
(
5
,
3
,
2
)
B(5, 3, 2)
B
(
5
,
3
,
2
)
and
C
(
−
9
,
6
,
−
3
)
C(-9, 6, -3)
C
(
−
9
,
6
,
−
3
)
are the vertices of a triangle
A
B
C
ABC
A
B
C
. If the bisector of
∠
A
B
C
\angle ABC
∠
A
B
C
meets
B
C
BC
B
C
at
D
D
D
, then coordinates of
D
D
D
are a.
(
19
8
,
57
16
,
17
16
)
\left(\frac{19}{8}, \frac{57}{16}, \frac{17}{16}\right)
(
8
19
,
16
57
,
16
17
)
b.
(
−
19
8
,
57
16
,
17
16
)
\left(-\frac{19}{8}, \frac{57}{16}, \frac{17}{16}\right)
(
−
8
19
,
16
57
,
16
17
)
c.
(
19
8
,
−
57
16
,
17
16
)
\left(\frac{19}{8}, -\frac{57}{16}, \frac{17}{16}\right)
(
8
19
,
−
16
57
,
16
17
)
d. None of these
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