Coefficient of x 5 in the expansion of (1 + x 2 ) 5 (1 + x) 4 is

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

Coefficient of x5 in the expansion of (1 + x2)5 (1 + x)4 is
  1. –83
  2. –82
  3. –81
  4. 0

Answer

(C) –81

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