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Problem
For how many values of
p
p
p
, the circle
x
2
+
y
2
+
2
x
+
4
y
−
p
=
0
x^2 + y^2 + 2x + 4y - p = 0
x
2
+
y
2
+
2
x
+
4
y
−
p
=
0
and the co-ordinate axes have exactly three common points? [JEE Advanced 2017, 3M]
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