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Tardigrade
Question
Mathematics
The shortest distance between the lines (x/2) = (y/2) = (z/1) and (x +2/-1) = (y -4/8) = (z -5/4) lies in the interval :
Q. The shortest distance between the lines
2
x
=
2
y
=
1
z
and
−
1
x
+
2
=
8
y
−
4
=
4
z
−
5
lies in the interval :
5503
227
JEE Main
JEE Main 2016
Three Dimensional Geometry
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A
[
0
,
1
)
16%
B
[
1
,
2
)
29%
C
(
2
,
3
]
39%
D
(
3
,
4
]
16%
Solution:
Shortest distance
∥
∥
i
a
1
a
2
j
b
1
b
2
k
c
1
c
2
∥
∥
∣
∣
x
2
−
x
1
a
1
a
2
y
2
−
y
1
b
1
b
2
z
2
−
z
1
c
1
c
2
∣
∣
=
∣
∣
i
2
−
1
j
2
8
k
1
4
∣
∣
∣
∣
−
2
2
−
1
4
2
3
5
1
4
∣
∣
=
20.1
254
=
2.7