×òè??oá÷?ê?D?òè?éú(limx→0 e)

如图,圆O与x轴交于A B两点,与y轴交于C F两点,点D是圆O上一点,且DC弧 AC弧,

??ê×

íùê?2??°??ê×

è?′óo£ò?°?

B O R D R I N

???e??o£é?′|μ???ò?

D?2ü?ˉ×?

?òò??aíüè′ò??D

è′2??aê??ú×?????è?

??è?μ???μ?1yíù???ü?μíü?ííü

ò??±ò?à′?ìòa°??üíüè′ò???

μ±???e?ùóD??ò?àáò?????

??ò??ˉ3éμ?μ?àá1a

????íü

D???μ??àá12??úè?éí

?ò???ù′???×??o??2?

?à×?ò?è?????±ùà?μ?D??à

????ê?×?ò?μ?μ?μ???1a

?¥?¥±?ò?íü


í??????á:
如图,P为 O外一点,PA PB分别切 O于A B两点,OP交 O于点C,连接BO并延长交 O于点D,交PA的延长线于点E,连接AD BC.下列结论 ①AD PO ② ADE PCB ③tan EAD

相关推荐