计算:cos13π/4+tan(-11π/6)=?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/28 19:27:33
计算:cos13π/4+tan(-11π/6)=?计算:cos13π/4+tan(-11π/6)=?计算:cos13π/4+tan(-11π/6)=?原式=cos5π/4+tanπ/6=-cosπ/4

计算:cos13π/4+tan(-11π/6)=?
计算:cos13π/4+tan(-11π/6)=?

计算:cos13π/4+tan(-11π/6)=?
原式=cos5π/4+tanπ/6
=-cosπ/4+tanπ/6
=-(根号2)/2+(根号3)/3