锟斤拷锟斤拷锟斤拷锟节半徑锟絃(zh锟斤拷ng)锟侥圓锟斤拷锟斤拷锟斤拷(du锟斤拷)锟侥圓锟侥角斤拷锟斤拷1锟斤拷锟饺的斤拷锟斤拷锟矫凤拷號(h锟斤拷o)rad锟斤拷示锟斤拷锟絰锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角高匡拷锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)锟斤拷(f锟斤拷)锟斤拷(x锟斤拷)锟斤拷要知锟絉(sh锟斤拷)锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷锟�锟斤拷锟斤拷锟斤拷锟狡猴拷锟斤拷锟斤拷堑锟斤拷锟斤拷锟�锟斤拷希锟斤拷锟斤拷(du锟斤拷)锟斤拷锟斤拷锟叫庯拷锟斤拷锟斤拷

锟斤拷锟斤拷1.锟斤拷锟斤拷锟�

锟斤拷锟斤拷(1)锟角的凤拷類ｏ拷

锟斤拷锟�锟斤拷侔锟斤拷锟斤拷D(zhu锟斤拷n)锟斤拷锟斤拷同锟街烇拷锟斤拷锟斤拷锟斤拷負(f锟斤拷)锟斤拷锟斤拷锟斤拷锟�.

锟斤拷锟�锟斤拷诎锟斤拷K邊位锟矫诧拷同锟街烇拷锟斤拷锟睫角猴拷锟絊锟斤拷锟斤拷.

锟斤拷锟斤拷(2)锟終邊锟斤拷同锟侥角ｏ拷

锟斤拷锟斤拷锟終邊锟絚锟斤拷α锟斤拷同锟侥角可岋拷(xi锟斤拷)锟斤拷α+k·360°(k∈Z).

锟斤拷锟斤拷(3)锟斤拷锟斤拷锟狡ｏ拷

锟斤拷锟�锟斤拷锟�1锟斤拷锟饺的角ｏ拷锟斤拷锟絃(zh锟斤拷ng)锟饺碉拷锟节半徑锟絃(zh锟斤拷ng)锟侥伙拷锟斤拷锟斤拷(du锟斤拷)锟侥圓锟侥角斤拷锟斤拷1锟斤拷锟饺的斤拷.

锟斤拷锟�锟斤拷锟揭�(gu锟斤拷)锟斤拷锟斤拷锟斤拷锟角的伙拷锟饺旓拷(sh锟斤拷)锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷負(f锟斤拷)锟角的伙拷锟饺旓拷(sh锟斤拷)锟斤拷負(f锟斤拷)锟斤拷(sh锟斤拷)锟斤拷锟斤拷堑幕锟斤拷葦锟�(sh锟斤拷)锟斤拷锟斤拷锟斤拷|α|=锟斤拷l锟斤拷锟皆斤拷α锟斤拷锟斤拷A锟侥角時(sh锟斤拷)锟斤拷锟斤拷(du锟斤拷)锟紸锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟斤拷r锟斤拷霃�.

锟斤拷锟�锟斤拷锟斤拷锟�“锟斤拷锟斤拷”锟斤拷锟斤拷位锟斤拷(l锟斤拷i)锟斤拷锟斤拷锟角碉拷锟狡度斤拷锟斤拷锟斤拷锟斤拷锟斤拷.锟斤拷值锟絚锟斤拷取锟斤拷r锟侥达拷小锟給(w锟斤拷)锟絇(gu锟斤拷n)锟斤拷锟紿锟絚锟角的达拷小锟斤拷锟絇(gu锟斤拷n).

锟斤拷锟�锟斤拷芑锟斤拷锟斤拷c锟角度的換锟姐：360°=2π锟斤拷锟斤拷;180°=π锟斤拷锟斤拷.

锟斤拷锟�锟斤拷莼锟斤拷L(zh锟斤拷ng)锟斤拷式锟斤拷l=|α|r锟斤拷锟斤拷锟斤拷锟斤拷e锟斤拷式锟斤拷S锟斤拷锟斤拷=lr=|α|r2.

锟斤拷锟斤拷2.锟斤拷锟斤拷堑锟斤拷锟斤拷呛锟斤拷锟�(sh锟斤拷)

锟斤拷锟斤拷(1)锟斤拷锟斤拷堑锟斤拷锟斤拷呛锟斤拷锟�(sh锟斤拷)锟斤拷锟絰锟斤拷

锟斤拷锟斤拷锟絆(sh锟斤拷)α锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟斤拷锟�锟斤拷锟斤拷α锟侥終邊锟絚锟斤拷位锟紸锟斤拷锟斤拷锟絚(di锟斤拷n)P(x锟斤拷y)锟斤拷锟斤拷么锟斤拷α锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭★拷锟斤拷锟叫分別锟角ｏ拷sin α=y锟斤拷cos α=x锟斤拷tan α=锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆角烇拷锟斤拷變锟斤拷锟斤拷锟皆嗭拷位锟紸锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷(bi锟斤拷o)锟斤拷锟斤拷锟斤拷(bi锟斤拷o)锟侥憋拷值锟介函锟斤拷(sh锟斤拷)值锟侥猴拷锟斤拷(sh锟斤拷).

锟斤拷锟斤拷(2)锟斤拷锟角猴拷锟斤拷(sh锟斤拷)锟节革拷锟斤拷锟睫冿拷(n锟斤拷i)锟侥凤拷號(h锟斤拷o)锟斤拷锟紼锟角ｏ拷一全锟斤拷锟斤拷锟斤拷锟斤拷锟揭★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷.

锟斤拷锟斤拷3.锟斤拷锟角猴拷锟斤拷(sh锟斤拷)锟斤拷

锟斤拷锟斤拷锟絆(sh锟斤拷)锟斤拷α锟斤拷锟斤拷c(di锟斤拷n)锟斤拷锟斤拷锟斤拷(bi锟斤拷o)原锟絚(di锟斤拷n)锟斤拷始邊锟絚x锟絊锟斤拷負(f锟斤拷)锟斤拷锟絊锟截猴拷锟斤拷锟終邊锟絚锟斤拷位锟紸锟洁交锟斤拷锟絚(di锟斤拷n)P锟斤拷锟絕(gu锟斤拷)P锟斤拷PM锟斤拷直锟斤拷x锟絊锟斤拷M.锟斤拷锟斤拷锟角猴拷锟斤拷(sh锟斤拷)锟侥讹拷锟絰知锟斤拷锟絚(di锟斤拷n)P锟斤拷锟斤拷锟斤拷(bi锟斤拷o)锟斤拷(cos_α锟斤拷sin_α)锟斤拷锟斤拷P(cos_α锟斤拷sin_α)锟斤拷锟斤拷锟斤拷cos α=OM锟斤拷sin α=MP锟斤拷锟斤拷位锟紸锟絚x锟絊锟斤拷锟斤拷锟斤拷锟絊锟斤拷锟斤拷锟絚(di锟斤拷n)A锟斤拷锟斤拷位锟紸锟斤拷A锟絚(di锟斤拷n)锟斤拷锟叫撅拷锟絚α锟侥終邊锟斤拷锟戒反锟斤拷锟斤拷锟絃(zh锟斤拷ng)锟斤拷锟洁交锟斤拷锟絚(di锟斤拷n)T锟斤拷锟絫tan α=AT.锟揭傦拷锟斤拷锟斤拷锟津線讹拷OM锟斤拷MP锟斤拷AT锟斤拷锟斤拷α锟斤拷锟斤拷锟揭撅拷锟斤拷锟斤拷锟揭撅拷锟斤拷锟斤拷锟叫撅拷.

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竭★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)