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Mathematics
Mathematics
Problem
Two lines
L
1
:
x
=
5
,
y
3
−
α
=
z
−
2
L_1: x = 5, \frac{y}{3-\alpha} = \frac{z}{-2}
L
1
:
x
=
5
,
3
−
α
y
=
−
2
z
and
L
2
:
x
=
α
,
y
−
1
=
z
2
−
α
L_2: x = \alpha, \frac{y}{-1} = \frac{z}{2-\alpha}
L
2
:
x
=
α
,
−
1
y
=
2
−
α
z
are coplanar. Then,
α
\alpha
α
can take value(s) a. 1 b. 2 c. 3 d. 4
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