10.若直线l将圆平分.且l不通过第四象限.则l斜率的取值范围为 . 查看更多

 

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若直线l将圆x2+y2-2x-4y=0平分,且不通过第四象限,那么直线l的斜率的取值范围是

A.[0,2]                                                    B.[0,1]

C.[0,]                                                  D.[0,)

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若直线l将圆x2+y2-2x-4y=0平分,且不通过第四象限,那么直线l的斜率的取值范围是
A.[0,2]B.[0,1]
C.[0,D.[0,)

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(文)如果直线l将圆x2y2-2x-4y=0平分,且不通过第四象限,则直线l的斜率的取值范围是                                                                                             (  )

A.[0,1]                     B.           C.                       D.[0,2]

 (理)若曲线x2y2+2x-6y+1=0上相异两点PQ关于直线kx+2y-4=0对称,则k的值为                                                                                             

A.1                   B.-1                C.               D.2

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(文)如果直线l将圆x2y2-2x-4y=0平分,且不通过第四象限,则直线l的斜率的取值范围是                                                                                             (  )

A.[0,1]                     B.           C.                       D.[0,2]

 (理)若曲线x2y2+2x-6y+1=0上相异两点PQ关于直线kx+2y-4=0对称,则k的值为                                                                                             

A.1                   B.-1                C.               D.2

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