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Question
Mathematics
If p, q are the roots of the equation x2 + px + q = 0, then
Q. If
p
,
q
are the roots of the equation
x
2
+
p
x
+
q
=
0
, then
1642
215
WBJEE
WBJEE 2016
Complex Numbers and Quadratic Equations
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A
p
=
1
,
q
=
−
2
18%
B
p
=
0
,
q
=
1
65%
C
p
=
−
2
,
q
=
0
12%
D
p
=
−
2
,
q
=
1
6%
Solution:
2
p
2
+
q
=
0
⇒
p
=
1
,
q
=
−
2
q
(
p
+
q
+
1
)
=
0