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manan bhavsar Grade: 12
        the coefficient of x^n in the expa. of 

(1+x+x^2+....)^(-n) is
6 years ago

Answers : (1)

Sona Srivastava
38 Points
										

1 + x + x..... = 1/(1-x) .......infinite gp

(1/(1-x))-n = (1-x)n

solve ahead accordingly

6 years ago
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