设直线是x/a+y/b=1则他和坐标轴交点是(0,b),(a,0)所以三角形面积=|ab|/2=1|ab|=2直线过A(-2,2)-2/a+2/b=11/b-1/a=1/2(a-b)/(ab)=1/2ab=2(a-b)若a>b则a-b>0,ab>0则|ab|=ab=2=2(a-b)a-b=1a=b+1ab=2b^2+b-2=0(b+2)(b-1)...