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JEE Main Math Class 11 Straight Lines and Pair of Straight Lines 2 Questions
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© examsnet.com
Question : 8
Total: 88
If the locus of the point, whose distances from the point
(
2
,
1
)
and
(
1
,
3
)
are in the ratio
5
:
4
, is
a
x
2
+
b
y
2
+
c
x
y
+
d
x
+
e
y
+
170
=
0
, then the value of
a
2
+
2
b
+
3
c
+
4
d
+
e
is equal to:
[6 Apr 2024 Shift 2]
5
-27
37
437
Validate
Solution:
👈: Video Solution
let
P
(
x
,
y
)
(
x
−
2
)
2
+
(
y
−
1
)
2
(
x
−
1
)
2
+
(
y
−
3
)
2
=
25
16
9
x
2
+
9
y
2
+
14
x
−
118
y
+
170
=
0
a
2
+
2
b
+
3
c
+
4
d
+
e
=
81
+
18
+
0
+
56
−
118
=
155
−
118
=
37
© examsnet.com
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