如图,PA与⊙O相切于点A,过点A作AB⊥OP,垂足为C,交⊙O于点B.连接PB,AO,并延长AO交⊙O于点D,与PB的延长线交于点E.
![](https://img.xkw.com/dksih/QBM/2020/4/20/2445421206216704/2445780806647808/STEM/051850fccec74719ad8bdd2b79eeb720.png?resizew=181)
(1)求证:PB是⊙O的切线;
(2)若OC=6,AC=8,求sinE的值.
![](https://img.xkw.com/dksih/QBM/2020/4/20/2445421206216704/2445780806647808/STEM/051850fccec74719ad8bdd2b79eeb720.png?resizew=181)
(1)求证:PB是⊙O的切线;
(2)若OC=6,AC=8,求sinE的值.
更新时间:2020-04-20 22:16:42
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