圓錐曲線中非對(duì)稱問(wèn)題的處理課件

橢圓中非對(duì)稱問(wèn)題橢圓中非對(duì)稱問(wèn)題1點(diǎn)代入曲線消參探究1O點(diǎn)代入曲線消參探究1O2探究2點(diǎn)代入直線消參O探究2點(diǎn)代入直線消參O3探究3O探究3O4線路1：化對(duì)稱如何化對(duì)稱結(jié)構(gòu)？“直接代入”“待定系數(shù)”線路1：化對(duì)稱如何化對(duì)稱結(jié)構(gòu)？“直接代入”“待定系數(shù)”5線路1：化對(duì)稱線路1：化對(duì)稱6線路2：代入曲線化對(duì)稱線路2：代入曲線化對(duì)稱7OO8OO9拓展延伸PGA1A2F1F2xyOQ拓展延伸PGA1A2F1F2xyOQ10PGA1A2F1F2xyQ拓展延伸PGA1A2F1F2xyQ拓展延伸11拓展延伸PGA1A2F1F2xyQT拓展延伸PGA1A2F1F2xyQT12非對(duì)稱問(wèn)題的處理（1）、化對(duì)稱（2）、利用點(diǎn)在曲線上化對(duì)稱課堂總結(jié)非對(duì)稱問(wèn)題的處理課堂總結(jié)13THANKSTHANKS14P(x0，y0)MN相切時(shí)，切點(diǎn)弦MNP(x0，y0)MNABCD相交時(shí)，極線為MN極點(diǎn)極線P(x0，y0)MN相切時(shí)，切點(diǎn)弦MNP(x0，y0)MNA15圓錐曲線中非對(duì)稱問(wèn)題的處理課件16圓錐曲線中非對(duì)稱問(wèn)題的處理課件17線路1：整體代換線路1：整體代換18線路1：整體代換線路1：整體代換19線路1：回憶我們?nèi)绾位瘜?duì)稱結(jié)構(gòu)？化對(duì)稱“直接代入”

“待定系數(shù)”線路1：回憶我們?nèi)绾位瘜?duì)稱結(jié)構(gòu)？化對(duì)稱“直接代入”20PGA1A2F1F2xyPGA1A2F1F2xy21橢圓中非對(duì)稱問(wèn)題橢圓中非對(duì)稱問(wèn)題22點(diǎn)代入曲線消參探究1O點(diǎn)代入曲線消參探究1O23探究2點(diǎn)代入直線消參O探究2點(diǎn)代入直線消參O24探究3O探究3O25線路1：化對(duì)稱如何化對(duì)稱結(jié)構(gòu)？“直接代入”“待定系數(shù)”線路1：化對(duì)稱如何化對(duì)稱結(jié)構(gòu)？“直接代入”“待定系數(shù)”26線路1：化對(duì)稱線路1：化對(duì)稱27線路2：代入曲線化對(duì)稱線路2：代入曲線化對(duì)稱28OO29OO30拓展延伸PGA1A2F1F2xyOQ拓展延伸PGA1A2F1F2xyOQ31PGA1A2F1F2xyQ拓展延伸PGA1A2F1F2xyQ拓展延伸32拓展延伸PGA1A2F1F2xyQT拓展延伸PGA1A2F1F2xyQT33非對(duì)稱問(wèn)題的處理（1）、化對(duì)稱（2）、利用點(diǎn)在曲線上化對(duì)稱課堂總結(jié)非對(duì)稱問(wèn)題的處理課堂總結(jié)34THANKSTHANKS35P(x0，y0)MN相切時(shí)，切點(diǎn)弦MNP(x0，y0)MNABCD相交時(shí)，極線為MN極點(diǎn)極線P(x0，y0)MN相切時(shí)，切點(diǎn)弦MNP(x0，y0)MNA36圓錐曲線中非對(duì)稱問(wèn)題的處理課件37圓錐曲線中非對(duì)稱問(wèn)題的處理課件38線路1：整體代換線路1：整體代換39線路1：整體代換線路1：整體代換40線路1：回憶我們?nèi)绾位瘜?duì)稱結(jié)構(gòu)？化對(duì)稱“直接代入”