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Tardigrade
Question
Mathematics
The angle between the lines √3x-y-2=0 and x-√3y+1=0 is:
Q. The angle between the lines
3
x
−
y
−
2
=
0
and
x
−
3
y
+
1
=
0
is:
2354
231
KEAM
KEAM 2006
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A
90
∘
B
60
o
C
45
∘
D
15
∘
E
30
∘
Solution:
Let
m
1
=
slope of
3
x
−
y
−
2
=
0
i.e.,
m
1
=
3
and
m
2
=
slope of
x
−
3
y
+
1
=
0
i.e.,
m
2
=
3
1
∴
tan
θ
=
∣
∣
1
+
m
1
m
2
m
1
−
m
2
∣
∣
=
∣
∣
1
+
1
3
−
3
1
∣
∣
=
∣
∣
2.
3
3
−
1
∣
∣
=
3
1
∴
θ
=
30
∘