The coefficient of x^{-7} in the binomial expansion of (3 x^{\frac{1}{5}}+{4}/{\\sqrt{x})^{21} is

TS ICET 19 Aug 2021 Shift 2 Paper

Question : 131 of 200

Marks: +1, -0

The coefficient of

x^{-7}

in the binomial expansion of

(3 x^{{1}/{5}}+{4}/{\√{x}})^{21}

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