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Question
Mathematics
If the quadratic equation x 2+ ax -4=0 has roots α, β such that -1<α<2<β, then the range of values of a is
Q. If the quadratic equation
x
2
+
a
x
−
4
=
0
has roots
α
,
β
such that
−
1
<
α
<
2
<
β
, then the range of values of
a
is
562
115
Complex Numbers and Quadratic Equations
Report Error
A
(
−
∞
,
−
3
)
B
(
0
,
3
)
C
(
0
,
∞
)
D
(
−
∞
,
−
3
)
∪
(
0
,
3
)
Solution:
Correct answer is (a)
(
−
∞
,
−
3
)