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AP and TS EAMCET Engineering Model Paper 14
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© examsnet.com
Question : 26
Total: 159
If the equation
x
2
+
p
y
2
+
q
y
=
a
2
represents a pair of perpendicular lines then its point of intersection is
(
1
,
a
)
(
1
,
−
a
)
(
0
,
a
)
(
0
,
2
a
)
Validate
Solution:
Apply
a
+
b
=
0
, ∆ = 0 we get
p
=
−
1
,
q
=
±
2
a
P.O.I
=
(
0
,
∓
a
)
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