Angle Between Perpendicular Lines (Jee Mains) | ExamDuo
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3D Line Equations and Skew
Medium
Angle Between Perpendicular Lines
If the two lines
l
1
:
x
−
2
3
=
y
+
1
−
2
,
z
=
2
and
l
2
:
x
−
1
1
=
2
y
+
3
α
=
z
+
5
2
are perpendicular, then an angle between the lines
I
2
and
l
3
:
1
−
x
3
=
2
y
−
1
−
4
=
z
4
is :
Ask about this question
SELECT ONE OPTION
A
cos
−
1
(
29
4
)
B
sec
−
1
(
29
4
)
C
cos
−
1
(
2
29
)
D
cos
−
1
(
2
√
29
)
Check