Ahyperbola(双曲线)wjthvertices(顶点)(-2,5)and(-2,-3),has an asynptote(渐近线)that passes the point(2.5) Then an equarionk of the hyperbola is
命题P:x∈R,x2+1≥2x,则¬P为()
直线的倾斜角和斜率分别是
已知,则的最小值是
不等式组所确定的平面区域记为,则的最大值为
△ABC中,根据下列条件,确定△ABC有两解的是