tan(π/12)-(1/tan(π/12))

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/10/02 02:44:11

tan(π/12)-(1/tan(π/12))
=[tan²(π/12)-1]/tan(π/12)
=-2/{2tan(π/12)/[1-tan²(π/12)]}
=-2/[tan(2×π/12)]
=-2/tan(π/6)
=-2/(√3/3)
=-2√3

tan(π/12)+1/tan(π/12)=啥? 化简：tan(π/8)+1/tan(π/12) tanπ/12-cotπ/12 tan=3,π tanπ8 tan（a+π4 化简tan(18-x)tan(12+x)+根号3[tan(18-x)+tan(12+x)] tan 已知tan(π/12+α)=根号2,tan(β-π/3)=2根号2,求tan（α+β）的值 tanπ/12+cotπ/12的值等于多少? 求tanπ/8 + cotπ/12的值 tan(a+b)=3/4,tan(a-π/4)=1/2,那么tan(b+π/4)等于多少