锟斤拷一锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)锟教帮拷锟斤拷 锟斤拷锟斤拷锟角碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭★拷锟斤拷锟斤拷(锟斤拷)?.doc
锟斤拷(l锟斤拷i)源锟斤拷锟竭匡拷锟絎(w锟斤拷ng) 2009-05-29 20:49:13
锟斤拷锟斤拷(一)知锟絉(sh锟斤拷)目锟斤拷(bi锟斤拷o)?
锟斤拷锟斤拷1.锟斤拷锟斤拷锟角碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫癸拷式锟斤拷?
锟斤拷锟斤拷(1)sin2α锟斤拷2sinαcosα?
锟斤拷锟斤拷(2)cos2α锟斤拷cos2α锟斤拷sin2α锟斤拷2cos2α锟斤拷1锟斤拷1锟斤拷2sin2α??
锟斤拷锟斤拷(3)tan2α锟斤拷
锟斤拷锟斤拷锟絚(di锟斤拷n)锟斤拷锟斤拷锟絛全锟斤拷锟斤拷锟斤拷一锟斤拷(sh锟斤拷)锟絎(xu锟斤拷)锟教讹拷锟斤拷锟角碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭★拷锟斤拷锟斤拷(锟斤拷)?.doc
锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔
锟竭匡拷院校锟斤拷(k锟斤拷)锟斤拷锟斤拷锟斤拷W(xu锟斤拷)锟斤拷锟絰锟斤拷锟絀(y锟斤拷)锟斤拷一锟斤拷锟斤拷位锟斤拷锟斤拷
锟斤拷校锟斤拷?j锟斤拷n)?sh锟斤拷)锟斤拷
锟斤拷锟絀(y锟斤拷)锟斤拷?j锟斤拷n)?sh锟斤拷)锟斤拷
- 锟斤拷锟节诧拷詢