计算(x^(2n)+x^n+1)(x^(3n)-x^(2n)+1)
计算(x^(2n)+x^n+1)(x^(3n)-x^(2n)+1)
计算:(x^3)^n÷x^2n÷x^n-1
计算x^3n/(x^2-1)-x^2n/(x^n+1)-1/(x^n-1)+1/(x^n+1)
计算(-x)^2n十1.(-x)^n+1
计算:1/(x-1)+1/(x-1)(x-2)+1/(x-2)(x-3)+.+1/(x-n)(x-n-1)
计算:(m+2n)/(n-m)+n/(m-n)-2m(n-m)和[(x+2)/(x×x-2x)-(x-1)/(x×x-4
C语言 f(x)=1+x+x^2/2!+x^3/3!+...+x^n/n!直到|x^n/n|
计算【-2(-x^n-1)】^3
x^2n(x^2-2n-2x^1-2n+x^-2n)
因式分解4x^(n+2)-9x^n+6x^(n-1)-x^(n-2)
输入x,n,计算x-x^2/2!+x^3/3!+.+(-1)^(n-1)*x^n/n!的值.错在哪?
c语言编程.计算级数前n项的和:1+x+x*x/2!+x*x*x/3!+...+x的n次方/n!.