解不等式:(1)x^2-x+3>0 (2)x^2-7x+3<=0
不等式|(x+3)/x|>(x+3)/x,不等式(x²-9)/(x-2)>0
解不等式:(1)x^2-x+3>0 (2)x^2-7x+3<=0
解不等式(1)|X-2|+|X+3|>7 (2)x^2-2|x|-15>=0
1. (x-1)(x-3x+2)<0 2. (2x-7x-4x)<0 求解一元二次不等式的解集,急用.
f(x)={2X-1(X>0)}解不等式X分之f(x)大于0 3-X (X≤0)
解不等式(x²+2x-3)/ (x+1)>0
解不等式x-1/x(2x+3)≤0
/x-1/+/x+2/-x-3>0解不等式
解不等式(x-1)(x-2)(x-3)>0
不等式(x-2)^2(x-3)/(x+1)<0的解集
求不等式(x²-3x+2)(1-x)/x(x²-4)≥0的解集
解不等式2x^2-3x+1/3x^2-7x+2>0,