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Find the coefficient of x^(7) in ((2+3x)...

Find the coefficient of `x^(7)` in `((2+3x)^(3))/((1-3x)^(4))`.

Text Solution

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The correct Answer is:
`=8(""^(10)C_(3))3^(7)+36.(""^(9)C_(3))3^(6)+54.(""^(8)C_(3))(3^(5))+27(""^(7)C_(3)).3^(4)`
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