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Find the coefficient of u^2 v^9 in the expansion of (2u - 3v + u^2 - v^2)^9.

 Jan 4, 2023
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The 114th term of :     (2u - 3v + u^2 - v^2)^9 ==  - 577368 u^2 v^9

 Jan 5, 2023

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