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Tardigrade
Question
Mathematics
If m1, m2(m1>m2) are the slopes of the lines which make an angle of 30° with the line joining the points (1,2) and (3,4), then (m1/m2)=
Q. If
m
1
,
m
2
(
m
1
>
m
2
)
are the slopes of the lines which make an angle of
3
0
∘
with the line joining the points
(
1
,
2
)
and
(
3
,
4
)
, then
m
2
m
1
=
2657
201
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A
2
+
3
B
2
−
3
C
7
+
4
3
D
7
−
4
3
Solution:
Slope of
BC
=
3
−
1
4
−
2
=
1
Let the slope of
A
B
=
m
1
∴
tan
3
0
∘
=
∣
∣
1
+
m
1
m
1
−
1
∣
∣
⇒
±
3
1
=
1
+
m
1
m
1
−
1
m
1
+
1
=
±
3
(
m
1
−
1
)
m
1
+
1
=
3
(
m
1
−
1
)
m
1
(
3
−
1
)
=
3
+
1
m
1
=
3
−
1
3
+
1
=
2
+
3
Similarly, we get
m
2
=
2
−
3
∴
m
2
m
1
=
2
−
3
2
+
3
=
7
+
4
3