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Find the values of the following : (i) ...

Find the values of the following : (i) `i^(7)+i^(17)+i^(12)` (ii) `i^(11)+i^(-11)` (iii) `i^(3)+(1)/(i^(3))` (iv) `1+i^(2)+i^(6)+i^(8)`

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The correct Answer is:
N/a
(i) 1
(ii) 0
(iii) 0
(iv) 0
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