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find the coefficient of x^n in the expansion of (1+x)(1-x)^n

find the coefficient of x^n in the expansion of (1+x)(1-x)^n
 

Grade:10

1 Answers

manasa gorthy
39 Points
9 years ago
0 if n is odd                                                                                                                                       [-1]^n if nis even           

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