锟斤拷锟斤拷锟絖锟斤拷锟紸锟侥凤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟角达拷锟斤拷系锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟叫筹拷锟絇(gu锟斤拷n)锟斤拷a锟斤拷b锟斤拷r锟侥凤拷锟教組锟斤拷锟斤拷a锟斤拷b锟斤拷r锟斤拷锟斤拷直锟斤拷锟斤拷锟斤拷A锟斤拷(a锟斤拷b)锟酵半徑r锟斤拷锟斤拷锟斤拷锟斤拷小锟斤拷锟斤拷锟斤拷锟侥高匡拷锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)一輪锟斤拷(f锟斤拷)锟斤拷(x锟斤拷)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟斤拷請(q锟斤拷ng)锟斤拷锟斤拷锟絁(r锟斤拷n)锟斤拷W(xu锟斤拷)锟斤拷(x锟斤拷)锟斤拷

锟斤拷锟斤拷1锟斤拷锟紸锟侥讹拷锟絰锟斤拷平锟斤拷锟�(n锟斤拷i)锟斤拷一锟斤拷锟絚(di锟斤拷n)锟侥撅拷锟絰锟斤拷锟节讹拷锟絃(zh锟斤拷ng)锟斤拷锟絚(di锟斤拷n)锟侥硷拷锟较叫圓锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷A锟斤拷锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟斤拷A锟侥半徑锟斤拷

锟斤拷锟斤拷2锟斤拷锟紸锟侥凤拷锟斤拷

锟斤拷锟斤拷(1)锟斤拷(bi锟斤拷o)锟斤拷(zh锟斤拷n)锟斤拷锟斤拷锟斤拷锟紸锟侥ｏ拷锟诫徑锟斤拷r;

锟斤拷锟斤拷(2)一锟姐方锟斤拷

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟斤拷锟教憋拷示锟紸锟斤拷锟剿時(sh锟斤拷)锟紸锟侥烇拷锟斤拷锟诫徑锟斤拷

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟斤拷示一锟斤拷(g锟斤拷)锟絚(di锟斤拷n);锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟斤拷锟教诧拷锟斤拷示锟轿何圖锟斤拷锟斤拷

锟斤拷锟斤拷(3)锟斤拷A锟斤拷锟教的凤拷锟斤拷锟斤拷

锟斤拷锟斤拷一锟姐都锟斤拷锟矫达拷锟斤拷系锟斤拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟絆(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟絖锟斤拷一锟斤拷(g锟斤拷)锟紸锟斤拷要锟斤拷锟斤拷(g锟斤拷)锟斤拷(d锟斤拷)锟斤拷锟絣锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟矫圓锟侥橈拷(bi锟斤拷o)锟斤拷(zh锟斤拷n)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絘锟斤拷b锟斤拷r;锟斤拷锟斤拷锟斤拷一锟姐方锟斤拷锟斤拷锟斤拷要锟斤拷锟紻锟斤拷E锟斤拷F(xi锟斤拷n);

锟斤拷锟斤拷锟斤拷锟斤拷要注锟斤拷锟斤拷锟斤拷脠A锟侥幾猴拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟斤拷锟揭碉拷锟叫达拷锟斤拷锟截斤拷(j锟斤拷ng)锟絕原锟絚(di锟斤拷n)锟斤拷锟皆此侊拷锟絖锟斤拷锟紸锟侥碉拷位锟矫★拷

锟斤拷锟斤拷3锟斤拷直锟斤拷锟絚锟紸锟斤拷位锟斤拷锟絇(gu锟斤拷n)系锟斤拷

锟斤拷锟斤拷直锟斤拷锟絚锟紸锟斤拷位锟斤拷锟絇(gu锟斤拷n)系锟斤拷锟斤拷锟絰锟斤拷锟斤拷锟叫ｏ拷锟洁交锟斤拷锟絅锟斤拷r锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫兩種锟斤拷锟斤拷锟叫斷：

锟斤拷锟斤拷(1)锟絆(sh锟斤拷)直锟斤拷锟斤拷锟紸锟紸锟侥碉拷l锟侥撅拷锟絰锟斤拷t锟斤拷

锟斤拷锟斤拷(2)锟絆(sh锟斤拷)直锟斤拷锟斤拷锟紸锟斤拷锟饺岋拷锟斤拷锟斤拷聯(li锟斤拷n)锟斤拷锟斤拷元锟斤拷锟矫碉拷一锟斤拷(g锟斤拷)一元锟斤拷锟轿凤拷锟斤拷之锟斤拷锟斤拷锟斤拷锟叫碉拷锟叫別式锟斤拷锟斤拷锟絫锟斤拷;;

锟斤拷锟斤拷注锟斤拷锟斤拷A锟侥碉拷位锟斤拷锟斤拷原锟絚(di锟斤拷n)锟斤拷锟斤拷使锟矫癸拷式去锟斤拷直锟斤拷锟絚锟紸锟斤拷锟叫的嗭拷锟絵锟斤拷锟斤拷锟叫憋拷示锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷(bi锟斤拷o)锟斤拷r锟斤拷示锟诫徑锟斤拷

锟斤拷锟斤拷(3)锟絕锟紸锟斤拷一锟絚(di锟斤拷n)锟斤拷锟叫撅拷锟斤拷锟教ｏ拷

锟斤拷锟�锟斤拷賵Ax2+y2=r2锟斤拷锟紸锟斤拷一锟絚(di锟斤拷n)锟斤拷(x0锟斤拷y0)锟斤拷锟絫锟絕锟斤拷锟絚(di锟斤拷n)锟斤拷锟叫撅拷锟斤拷锟教烇拷(锟絥锟斤拷锟斤拷锟絵).

锟斤拷锟�锟斤拷趫A(x-a)2+(y-b)2=r2锟斤拷锟紸锟斤拷一锟絚(di锟斤拷n)锟斤拷(x0锟斤拷y0)锟斤拷锟絫锟絕锟斤拷锟絚(di锟斤拷n)锟斤拷锟叫撅拷锟斤拷锟教烇拷(x0-a)(x-a)+(y0-b)(y-b)=r2(锟絥锟斤拷锟斤拷锟絵锟斤拷锟狡廣).

锟斤拷锟斤拷4锟斤拷锟紸锟絚锟紸锟斤拷位锟斤拷锟絇(gu锟斤拷n)系锟斤拷通锟絕锟缴圓锟诫徑锟侥猴拷(锟斤拷)锟斤拷锟絚锟紸锟侥撅拷(d)之锟絞锟侥达拷小锟斤拷锟絕锟斤拷锟絖锟斤拷锟斤拷

锟斤拷锟斤拷锟絆(sh锟斤拷)锟紸锟斤拷

锟斤拷锟斤拷锟缴圓锟斤拷位锟斤拷锟絇(gu锟斤拷n)系锟斤拷通锟絕锟缴圓锟诫徑锟侥猴拷(锟斤拷)锟斤拷锟絚锟紸锟侥撅拷(d)之锟絞锟侥达拷小锟斤拷锟絕锟斤拷锟絖锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟缴圓锟斤拷锟絰锟斤拷锟剿時(sh锟斤拷)锟叫癸拷锟叫撅拷锟侥條;

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟缴圓锟斤拷锟斤拷锟斤拷锟紹锟侥撅拷锟絕锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟解公锟叫撅拷锟缴條锟斤拷锟斤拷(n锟斤拷i)锟斤拷锟叫撅拷一锟絣;

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟缴圓锟洁交锟斤拷锟紹锟侥撅拷锟斤拷直平锟街癸拷锟斤拷锟斤拷锟斤拷锟叫兩條锟解公锟叫撅拷;

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟缴圓锟斤拷(n锟斤拷i)锟斤拷锟斤拷锟紹锟侥撅拷锟斤拷(j锟斤拷ng)锟絕锟斤拷锟絚(di锟斤拷n)锟斤拷只锟斤拷一锟絣锟斤拷锟叫撅拷;

锟斤拷锟斤拷锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟缴圓锟斤拷(n锟斤拷i)锟斤拷;锟斤拷(d锟斤拷ng)锟絩(sh锟斤拷)锟斤拷锟斤拷同锟侥圓锟斤拷

锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟絉锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號(h锟斤拷o)