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Byju's Answer
Standard XII
Mathematics
Properties of Inverse Function
State True an...
Question
State True and False
The complex numbers z which satisfy the inequality
log
1
/
3
|
z
+
1
|
>
log
1
/
3
|
z
−
1
|
are such that their real part is -ve .
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Solution
Yes, true.Since base 1/3 is less than 1, so given inequality holds if
|
z
+
1
|
<
|
z
−
1
|
or
(
x
+
1
)
2
+
y
2
<
(
x
−
1
)
2
+
y
2
or
4
x
<
0
or
R
e
(
z
)
<
0
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