计算:.
解不等式组: {4(x-1)<x+2x+73>x
计算: |-√3|-(4-π)0+2sin60°+(14)-1 .
解不等式组: {3(x+1)>x-1x+92>2x
计算 4sin45°+(π-2)0-√18+|-1|
解不等式组: {2(x+1)>5x-7x+103>2x .