(1)y=-2(x^2-4x+3) =-2(x-1)(x-3,
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
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
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
分解因式计算:x^2(x-y)+(y-x)=?x^3+x^2+1\4x=?(2x+y)^2-(x-2y)^2=?
已知x=1/3,y=-1/2,求代数式x-(x+y)+(x+2y)-(x+3y)+(x+4y)-(x+5y)+...-(
求函数y=\x-1\+\x-2\+\x-3\+\x-4\+\x-5\+\x-6\+.+\x-10\的最小值
先化简再求值(x-y)(x+y)-(x-2y) 的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2 y
y=(2x*x-2x+3)/(x*x-x+1),求值域?
y=2x+1\x-3(x>4)值域