The ninth term of the expansion (3 x- 1 2 x )^ is

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

1. \(\frac{1}{512 x^{9}}\)
2. \(\frac{-1}{512 x^{9}}\)
3. \(\frac{-1}{256 \cdot x^{8}}\)
4. \(\frac{1}{256 \cdot x^{1}}\)

Answer

(B) -1 512 x^ 9

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