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Question Number 63936 by gunawan last updated on 11/Jul/19

The coefficient of the term independent  of  x in the expansion of   (1+x+2x^3 )((3/2) x^2  − (1/(3x)))^9  is

$$\mathrm{The}\:\mathrm{coefficient}\:\mathrm{of}\:\mathrm{the}\:\mathrm{term}\:\mathrm{independent} \\ $$$$\mathrm{of}\:\:{x}\:\mathrm{in}\:\mathrm{the}\:\mathrm{expansion}\:\mathrm{of}\: \\ $$$$\left(\mathrm{1}+{x}+\mathrm{2}{x}^{\mathrm{3}} \right)\left(\frac{\mathrm{3}}{\mathrm{2}}\:{x}^{\mathrm{2}} \:−\:\frac{\mathrm{1}}{\mathrm{3}{x}}\right)^{\mathrm{9}} \:\mathrm{is} \\ $$

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