A) \[-1\]
B) 1
C) 0
D) 2
E) \[-2\]
Correct Answer: A
Solution :
\[{{(i)}^{2}}+{{(i)}^{4}}+{{(i)}^{6}}+....+(2n+1)th\text{ }term\] \[=-1+1-1+1...(-1)=-1\]
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