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设,,,点是线段上的一个动点,,若, 则实数的取值范围是 ( ) A. B. C...

6ec8aac122bd4f6e,6ec8aac122bd4f6e,6ec8aac122bd4f6e,点6ec8aac122bd4f6e是线段6ec8aac122bd4f6e上的一个动点,6ec8aac122bd4f6e,若6ec8aac122bd4f6e,

则实数6ec8aac122bd4f6e的取值范围是                                                                             (    )

A.6ec8aac122bd4f6e                                                           B.6ec8aac122bd4f6e  

 

C.6ec8aac122bd4f6e                                                   D.6ec8aac122bd4f6e

 

 

B 【解析】设P(x,y),则由得, 又点是线段上的一个动点, 故选B.
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