求|x-1|+|x-2|+|x-3|.+|x-1997|的最小值

x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X 一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X |x^2-4x+3|+|x+1|>8 求x 求x/(x+1)(x+2)(x+3)的不定积分 求x/(x-1)(x-2)(x-3)积分 *-----------------------------------------------*| 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 || (x+1)(x-1)+2x(x+2)=3(x的平方+1),求X. 已知x^-x-1=0,求x^4+x^3-x^2-4x+3 已知x*x-3x+1=0求√(x*x+1/x-2)=? y=(2x*x-2x+3)/(x*x-x+1),求值域? 求|x-1|+|x-2|+|x-3|+|x-4|+|x-5|+...+|x-2007|的最小值 /x-1/+/x-2/+/x-3/x-4/+/x-5/ +/x-6/求最小值 X^2-3X-2=0,求( x - 2x-1/x )÷(x-1)/(x^2-2x) 求x^2-3x/x^2-6x+9*x^2-11x+30/x^2-5x-1 已知x=1/x,求x^2-6x+9/x-3/x+3/x^2+6x+9 (x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几? 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