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请教直线与圆的问题
Circle C and line K in the xy plane, if the circle C is centralized at the origin and has radius 1. Does link K intersect circle C? 1) The x intercept of the link k is greater than 1 2) the slope of link is -1/10
OA:E
请高人教我一下这题的解题思路,一条是否与圆相切需要什么条件呢 我看书了但是看不懂。 马上考试了,这个是个盲点。各位帮帮我。谢谢
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