1.4x+2=x+32.0.2x-1/3=0.5-1/3x3.2x-1/3-1=04.4x+3=2x-9
2x3-3x+三分之二x3-2x-三分之四x3+x-1,其中x=-二分之一
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
已知全集I={x|x²-3x+2≥0},A={x|x3},B={x|x≤1或x>2}
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
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
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
x+2/x+3-x+1/x+2=x+8/x+9-x+7/x+8
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
已知f(x)=x2-x-5+g(x)=1/3x3-5/2x2+4x求函数y=g'(x)/f(x)+9值域
2x/x^2-9=x-1/x^2-6x+9-1/x+3
1.x/9+x=62.x/x+1 + x+1/2x = 3