i^ 2 +i^ 4 +i^ 6 + upto (2 k+1) terms, k N is

Mathematics · JEE Main · NTA Exams — Complex Numbers and Quadratic Equations

1. \(0\)
2. \(1\)
3. \(-1\)
4. \(\text { k }\)

Answer

(C) -1

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