If (2-x-x^ 2 )^ n =a_ n +a_ 1 x+a_ 2 x^ 2 + , then the value of a _ a + a _ 2 + a _ 4 +

Mathematics · JEE Main · NTA Exams — Binomial Theorem And Its Simple Applications

1. \(z^{n-1}\)
2. \(z^{2 n}\)
3. \(z^{2 n-1}\)
4. None of these

Answer

(D) None of these

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