x是自然数,设y=x^4+2x^3+2x^2+2x+1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
设x>=-1,则函数y=(x+2)(x+3)/x+1最小值
设|X-2|+(Y+1/4)^2=0,试求代数式X^2(X^2-XY+Y)-X(X^3-2X^2Y+XY-1)
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设y=x(x-1)(x-2)(x-3)——(x-n),则y^(n+1)=?
设x>1,y>0,若x^y+x^-y=2根号2,则x^y-x^-y等于
设x、y满足约束条件{x≥0 y≥x 4x+3y≤12}则2y+3/x+1的取值范围是?
1、x(x-y)(x+y)-x(x+y)^2
若2x-3y+4=0则x(x*x-1)+x(5-x*x)-6y+7
函数,y=3x/(x^2+x+1) ,x
函数y=3x/(x^2+x+1) (x
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x