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Respected Ma'am/Sir. I have doubt in Question no. 2. Sir/Ma'am I always get confusion in how to iota summation or even normal summation. Like such a large numbers like 200,300,400 etc..... How to do summation. How to cancel the terms. I would be grateful if you teach in detail about it.
Asked by pranavsrinivas82 | 19 Jan, 2024, 11:11: PM
Expert Answer
Powers of imaginary number i are i , -1 , -i and +1 . These numbers are periodic as shown below
hence 
is
-----------------------------------------------
Similarly , 
is
Hence , 
Hence x = 0 , y = 1
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