sin25π6+cos25π3+tan(-25π4)=_.
问题描述:
sin
+cos25π 6
+tan(-25π 3
)=______. 25π 4
答
sin
+cos25π 6
+tan(-25π 3
)=sin25π 4
+cosπ 6
-tanπ 3
=π 4
+1 2
-1=01 2
故答案为0.