问题
填空题
计算:tan(-2010°)=______.
答案
tan(-2 010°)=-tan(210°+5×360°)
=-tan 210°=-tan(180°+30°)=-tan 30°=-
.3 3
故答案为-
.3 3
计算:tan(-2010°)=______.
tan(-2 010°)=-tan(210°+5×360°)
=-tan 210°=-tan(180°+30°)=-tan 30°=-
.3 3
故答案为-
.3 3