化简或计算下列各式(1)sin4π/3-(cos25π/7-lgsin2)^0+|cos(-20π/3)|+tan(-π/6)

问题描述:

化简或计算下列各式(1)sin4π/3-(cos25π/7-lgsin2)^0+|cos(-20π/3)|+tan(-π/6)