sin3分之4π和sin4分之5π比大小
1个回答
2016-08-09
展开全部
sin(4π/3)=sin(π+π/3)=-sin(π/3)
sin(5π/4)=sin(π+π/4)=-sin(π/4)
sin(π/3)>sin(π/4)
-sin(π/3)<-sin(π/4)
sin(4π/3)< sin(5π/4)
sin(5π/4)=sin(π+π/4)=-sin(π/4)
sin(π/3)>sin(π/4)
-sin(π/3)<-sin(π/4)
sin(4π/3)< sin(5π/4)
追问
cos. tan呢
追答
同理:
cos>
tan>
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询