0

find the coefficient of $x^{32}$ in $\left(1+x+x^{2}+\ldots+x^{12}\right)^{5}$. is there some thick for this question? because It’s busy to calculate by multiple polynomial 5 times and get the answer. and all I know is the coefficient of $x^{n}$ is equal to the coefficient of $x^{60-n}$

更改状态以发布