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“为真”是命题“为真”的
已知,命题“若,则”的否命题是
抛物线的焦点坐标为
若,则
已知,则的大小关系为()