文档介绍：??????????????????????????????????????第四十一教时????????????????????????????????????????????????????????????????????????????????????????????????????1?????????)23,(,65sin?????xx???x2?????????)27,3(,5tan????xx???x??1??23????x?02??????x??65sin??x?65)sin(????x?)65arcsin(????x?)65arcsin(????x2??273????x?230?????x??5tan?x?5)3tan(???x?5arctan3???x?5arctan3???x?????21)32cos(????x???x???????21)32cos(????x?)(32232Zkkx????????32232??????kx?)(324Zkkx??????32232??????kx?)(24Zkkx???????x????},24324|{Zkkxkxx??????????????3arctan2arctan1arctan???????arctan2=?,arctan3=??tan?=2?tan?=3?24??????24??????132132tantan1tantan)tan(????????????????????????2??+?=43??arctan1=4??3arctan2arctan1arctan??=?????y=os(sinx),(323?????x)??????u=sinx?323?????x?123???u?65)os(sin0???x?????????]65,0[?????????????