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Byju's Answer
Standard XII
Mathematics
Modulus of a Complex Number
The roots of ...
Question
The roots of the equation
z
n
=
(
z
+
1
)
n
on the complex plane lie on the line
A
2
x
+
1
=
0
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B
2
x
−
1
=
0
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C
x
+
1
=
0
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D
x
−
1
=
0
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Solution
The correct option is
A
2
x
+
1
=
0
|
z
+
1
z
|
n
=
1
Let
n
=
1
,
|
z
+
1
|
=
|
z
|
Let
z
=
x
+
i
y
(
x
+
1
)
2
=
x
2
(
x
+
1
)
2
−
x
2
=
0
(
2
x
+
1
)
(
1
)
=
0
2
x
+
1
=
0
Hence answer is A.
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