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WBJEE 2016 Math Solved Paper
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© examsnet.com
Question : 35
Total: 75
The value of
13
Σ
n
=
1
(
i
n
+
i
n
+
1
)
, i =
√
−
1
, is
i
i - 1
1
0
Validate
Solution:
13
Σ
n
=
1
(
i
n
+
i
n
+
1
)
= i - 1
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