Complex Roots Modulus Equation (Jee Mains) | ExamDuo
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Algebra and Representation of Complex Numbers
Medium
Complex Roots Modulus Equation
If the equation,
x
2
+
b
x
+
45
=
0
(b ∈ R) has conjugate complex roots and they satisfy
|
z
+
1
|
=
2
√
10
, then
SELECT ONE OPTION
A
b
2
−
b
=
42
B
b
2
+
b
=
12
C
b
2
+
b
=
72
D
b
2
−
b
=
30
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