1.x^2/(x-2)-x-22.（1+2/x-(x+1)/(x-2)）/((x+4)/(x^2-2x))3.1/(1-x)+1/(1+x)+2/(1+x^2)+4/(1+x^4)

*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式：X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X. 分解因式----（X*X-X)(X*X-X-2)+1 1.x^2/(x-2)-x-22.（1+2/x-(x+1)/(x-2)）/((x+4)/(x^2-2x))3.1/(1-x)+1/(1+x)+2/(1+x^2)+4/(1+x^4) 1.用公式计算：COSX=1-X*X/2!X*X*X*X/4!-X*X*X*X*X*X/6!.直到最后一项的绝对 】x(x+1)+x^2(x-1) 1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做 已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10) 1.lim x->无穷 x*sin(2x/(x^2+1)) 22.lim x->正无穷 ((x^2-1)/(x^2+1))^(x^2) e^-2 1.化简（x^3-x^2)/(x^2-x)-(1-x^2)/(x+1) 1.(2x-1)(4x²+2x+1))2.（x-1)(x²+x) 因式分解1.-1+y+20y^22.(x^2-3x-5)(x^2-3x+2)+63.(x+1)(x+3)(x+5)(x+7)+15 1.x/9+x=62.x/x+1 + x+1/2x = 3 f(x)+f[(x-1)/x]=2x x不等于0,1.求f(x). x-1/x-2 {2X+1}+{X} (x^2-1)/x