作业帮求值sin(-17π/3)
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/15 03:42:09
x){iÞ<
]C
ƚ6IE lp aoE{,{"c<;6`U`Lmx`ƚFt
t! }l7
求值sin(-17π/3)
求值sin(-17π/3)
求值sin(-17π/3)
sin(-17π/3)
=-sin(17π/3)
=-sin(6π-π/3)
=-（-sin(π/3)）
=(√3/2)
sin(-17π/3)=sin(-6π+π/3)=sin(π/3)=(根号3)/2
sin(-17π/3)=sin（π/3）=1/2