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Tardigrade
Question
Mathematics
The acute angle (θ) between lines L1 and L2 with slopes m1 and m2 respectively is given by
Q. The acute angle
(
θ
)
between lines
L
1
and
L
2
with slopes
m
1
and
m
2
respectively is given by
464
154
Straight Lines
Report Error
A
tan
θ
=
1
+
m
1
m
2
m
1
−
m
2
, as
1
+
m
1
m
2
=
0
20%
B
tan
θ
=
1
+
m
1
m
2
m
2
−
m
1
, as
1
+
m
1
m
2
=
0
15%
C
tan
θ
=
∣
∣
1
+
m
1
m
2
m
2
−
m
1
∣
∣
, as
1
+
m
1
m
2
=
0
55%
D
None of the above
10%
Solution:
The acute angle (say
θ
) between lines
L
1
and
L
2
with slopes
m
1
and
m
2
respectively, is given by
tan
θ
=
∣
∣
1
+
m
1
m
2
m
2
−
m
1
∣
∣
, as
1
+
m
1
m
2
=
0