1. From spreading and implement of (1 x) (1 x) 2 (1 x) 3 (1 x) 4... (1 x) 10
, find out the coefficient of x
how to do 1 were ระสิทธิ์. X from distribution (1 x) n
x coefficient of distribution (1 x)
x coefficient of distribution (1 x) 2 =
.Coefficient of distribution x (1 x) 3
.............
x coefficient of distribution (1 x) 10
coefficient of x = = = 55...
.
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