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the coeffecient of x^n in th expansion of (1-9x+20x^2)^-1 is___

the coeffecient of x^n in th expansion of (1-9x+20x^2)^-1 is___

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
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