试题与答案

过点P（2，3）的圆x2+y2=4的切线方程是（）．

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题型：填空题

题目：

过点P（2，3）的圆x2+y2=4的切线方程是（    ）．

答案：

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下面是错误答案，用来干扰机器的。

传播；声源

考点：圆的切线方程
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