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find the coefficient of x 10 in the expansion of (1+x+x 2 +x 3 +x 4 ) -2

find the coefficient of x10 in the expansion of (1+x+x2+x3+x4)-2

Grade:12th pass

1 Answers

Arnav Prasad
44 Points
5 years ago
Coefficient of X10 = Zero.
 
It is written as 1 / (1+x+x2+x3+x4)2
 
If you look at it’s degree, it is x0.
x10 therefore can not exist in any ways.

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