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Mathematics
Mathematics
Problem
Let
A
(
2
,
3
,
5
)
A(2, 3, 5)
A
(
2
,
3
,
5
)
,
B
(
−
1
,
3
,
2
)
B(-1, 3, 2)
B
(
−
1
,
3
,
2
)
,
C
(
λ
,
5
,
μ
)
C(\lambda, 5, \mu)
C
(
λ
,
5
,
μ
)
are the vertices of a triangle and its median through
A
A
A
(i.e.)
A
D
AD
A
D
is equally inclined to the coordinates axes. Projection of
A
B
AB
A
B
on
B
C
BC
B
C
is a.
8
3
11
\frac{8\sqrt{3}}{11}
11
8
3
b.
−
8
3
11
-\frac{8\sqrt{3}}{11}
−
11
8
3
c.
−
48
-48
−
48
d. 48
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