【单选题】已知直线l过点(-2,0),当直线l与圆x 2 +y 2 =2x有两个交点时,其斜率k的取值范围是 [ ]
【简答题】已知直线l过点(-2,0),当直线l与圆x 2 +y 2 =2x有两个交点时,其斜率k的取值范围是________.
【单选题】Speaking refers to character monologs and_________,which serve to propel the development of the story.
【单选题】Speaking refers to character monologues and__________, which serve to propel the development of the story.
【单选题】已知直线l过点(-2,0),当直线l与圆x 2 +y 2 =2x有两个交点时,其斜率k的取值范围是( )
【单选题】Speaking refers to character monologs and __________ , which serve to propel the development of the story.
【单选题】已知直线l过点(-2,0),当直线l与圆x 2 +y 2 =2x有两个交点时,其斜率k的取值范围是( )
【简答题】已知直线l:(2a+b)x+(a+b)y+a-b=0及点P(3,4). (1)证明直线l过某定点,并求该定点的坐标. (2)当点P到直线l的距离最大时,求直线l的方程.