The positive value of for which the co-efficient of x 2 in the expression x^ 2 ( x + x^ 2…

Mathematics · JEE Main · NTA ExamsBinomial Theorem And Its Simple Applications

The positive value of λ for which the co-efficient of x2 in the expression \(x^{2}\left(\sqrt{x}+\frac{\lambda}{x^{2}}\right)^{10}\) is 720, is-
  1. 4
  2. \(2 \sqrt{2}\)
  3. 3
  4. \(\sqrt{5}\)

Answer

(B) 2 2

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