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Byju's Answer
Standard XI
Mathematics
Square Root of a Complex Number
If z = i i,wh...
Question
If
z
=
i
i
,where i =
√
−
1
, then Re(z) is
A
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B
zero
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C
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D
None of these
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Solution
The correct option is
A
z
=
i
i
=
(
e
i
π
2
)
i
=
e
−
π
2
⇒
R
e
(
z
)
=
e
−
π
2