(-X^5)*X^3N-1+X^3N*(-X)^4
(-X^5)*X^3N-1+X^3N*(-X)^4
计算(x^(2n)+x^n+1)(x^(3n)-x^(2n)+1)
4(x-y)^n+1-3(y-x)^n
C语言 f(x)=1+x+x^2/2!+x^3/3!+...+x^n/n!直到|x^n/n|
幂级数[(-1)^n/3^n]x^n (|x|
求和:Sn=1-3x+5x^2-7x^3+.+(2n+1)(-x)^n(n属于N*)
若x^3n=2,试求x^6n+x^4n乘以x^5n的值
求Sn=3x+4x²+5x³+.+(n+2)x^n
1.求数列1,x+x^2,x^2+x^3+x^4,x^3+x^4+x^5+x^6,...前n项之和
分解因式:-2X^(5n+1)Y^n+4X^(3n+1)Y^(n+2)-2X^(n+1)Y^(n+4)
因式分解有关题目1.x^n+2x^(n+1)+x^(n+2)将它分解因式2.(x+1)(x+2)(x+3)(x+4)+1
y=(x-1)(x-2)(x-3)(x-4)...(x-n)