cos3π,cos的三角函数

图例解析如下: ∫cos(π α)dα=∫cos(π α)d(π α)=sina(π α) c
图例解析如下: ∫cos(π α)dα=∫cos(π α)d(π α)=sina(π α) c
图例解析如下: ∫cos(π α)dα=∫cos(π α)d(π α)=sina(π α) c
tan(3π/2 α)dα=∫[sin(3π/2 α)d(3π/2 α)/ cos(3π/2 α)]=
图例解析如下: ∫cos(π-α)dα=-∫cos(π-α)d(π-α)=-sin(π-α)