正弦函数的定义域为R
余弦函数的定义域为R
正切函数的定义域为：x不等于kπ+π/2,k属于Z
但是复合函数的定义域要根据题目而定,没有固定的公式可套!
猜你喜欢
- 1Please acknowledge your receipt as soon as you would get them there!
- 2某部队计划为驻地村民新修水渠3600米，为了水渠能尽快投入使用，实际工作效率是原计划工作效率的1.8倍，结果提前20天完成修水渠任务．问原计划每天修水渠多少米？
- 3When the Americans were getting ready to send their first men to the moon,an old Irishman was watc
- 4成语对对子 如：锦上添花《 雪中送炭》 粗制滥造《 》 山珍海味《 》 笨嘴拙舌《 》
- 5The image of the family in this book was typical of the time.翻译!
- 6对下列诗句朗读节奏划分正确的是?
- 7张师傅加工了500个零件，比计划多100个，实际比计划多百分之几？
- 8直线l经过抛物线y2=4x的焦点，且与抛物线相交于A，B两点，若弦AB中点的横坐标为3，则|AB|=_．
- 9You( )to exercise more.A.ought、B.should、C.must
- 10怎样在梯形中画一条线段使它变成一个三角形和一个五边形