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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
)
be the vertices of a triangle. The median through
A
A
A
(i.e.,
A
D
AD
A
D
) is equally inclined to the coordinate axes. Find the value of
2
λ
−
μ
2\lambda - \mu
2
λ
−
μ
. a. 13 b. 4 c. 3 d. None of these
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