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Byju's Answer
Standard VIII
Mathematics
Adding Consecutive Odd Numbers
Given that ...
Question
Given that
i
=
√
−
1
,
i
2
=
−
1
,
i
3
=
−
i
and
i
4
=
1
.
The value of
i
127
is
A
−
i
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B
i
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C
−
1
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D
1
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Solution
The correct option is
A
−
i
i
127
=
(
i
4
)
31
×
i
3
=
(
1
)
31
×
(
−
i
)
=
1
×
(
−
i
)
=
−
i
Option A correct
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Q.
(
1
+
i
+
i
2
+
i
3
+
i
4
+
i
5
)
(
1
+
i
)
=
Q.
The value of
1
+
(
1
+
i
)
+
(
1
+
i
)
2
+
(
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i
)
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Q.
The value of
1
i
+
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i
2
+
1
i
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.
.
.
.
+
1
i
102
is
Q.
If
a
=
1
+
i
2
+
i
4
+
⋯
+
i
2
n
and
b
=
cos
−
1
(
∣
∣
∣
1
1
+
i
∣
∣
∣
)
, where
i
=
√
−
1
, then the value of
tan
(
b
a
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is
Q.
The value of i +
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i
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is
__
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