sin(3/2π-α)= cos(3/2π-α)=

来源：学生作业帮助网编辑：作业帮时间：2024/08/28 19:10:36

sin(3/2π-α)= cos(3/2π-α)=
sin(3/2π-α)= cos(3/2π-α)=

sin(3/2π-α)= cos(3/2π-α)=
sin(3/2π-α)=-cosα
cos(3/2π-α)=-sinα