这题我不会,化简 1/(x+1)(x+2)+1/(x+2)(x+3)+……+1/(x+9)(x+10).
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
化简:1+x+x(1+x)+x(1+x)^2+……+x(1+x)^2006
1.化简1/x(x-1)+1/(x-1)(x-2)+1/(x-2)(x-3)+…+1/(x-9)(x-10)= 一定要写
x+x^2+x^3+…+x^9+x^10=a0+a1(1+x)+a2(1+x)^2+…a9(1+x)9+a10(1+x)
不会的分式题 约分:9x^2 -6x+1/3x^2 -x 4x^2 -2x/4x^2 -1 x^2 -10x+25/3x
化简[(2X-3/X)-1]/(X平方-9/X)
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
化简:1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+...+1/(x+8)(x+9)
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),
化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)