The value of _ k =1 ^ 6 ( 2 k 7 -i 2 k 7 ) is k i , then value of k is

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

1. \(1\)
2. \(-1\)
3. \(0\)
4. \(i\)

Answer

(A) 1

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