sin4/3π=详细过程谢谢
问题描述:
sin4/3π=详细过程谢谢
答
sin4/3π
=sin(π+π/3)
=-sinπ/3
=-√3/2
sin4/3π=详细过程谢谢
sin4/3π
=sin(π+π/3)
=-sinπ/3
=-√3/2