sinπ/3+cosπ/2=5sin90°+2sin0°-3sin270°+10cos180°=
问题描述:
sinπ/3+cosπ/2=
5sin90°+2sin0°-3sin270°+10cos180°=
答
sinπ/3+cosπ/2=
5sin90°+2sin0°-3sin270°+10cos180°=