若x>3,化简丨x-1丨+丨3-x丨.
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若根号(x-3)=x-3,化简丨3-x丨-丨x-1丨
若x<0,化简丨x-3丨-丨x丨/丨丨x丨-2x丨.
已知函数f(x)=丨x-3丨,若不等式f(x-1)+f(x)
若x>3,化简丨x-1丨+丨3-x丨.
设丨x丨<3,且x>1/x,若x为整数,则x等于【】
丨(x-3)/(x-1)丨
化简丨3x+1丨+丨2x-1丨
化简丨2x-1丨+丨x-3丨 1
化简丨x+1丨+丨x+3丨,
已知x满足不等式3(4x+2)+6<3x-7(x+1),化简丨1+x丨-丨1-4x丨.
若不等式丨x-3丨+丨x+1丨
化简丨3-x丨;丨x+1丨+丨x+2丨
*-----------------------------------------------*| 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 ||
丨x^2-3x+2丨≤0丨x/x+1丨>x/x+1丨1/2-x丨≥2
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
化简丨3x+1丨-丨1-3x丨,x
当1<x<3时,化简丨x-3丨+丨x-1丨/2
求 已知根号2X-6有意义,化简丨X-1丨+丨3-X丨