已知tan(a-兀/4)=3,求tana
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/16 11:42:33
已知tan(a-兀/4)=3,求tana已知tan(a-兀/4)=3,求tana已知tan(a-兀/4)=3,求tanatan(a-π/4)=3(tana-tanπ/4)/(1+tanatanπ/4)
已知tan(a-兀/4)=3,求tana
已知tan(a-兀/4)=3,求tana
已知tan(a-兀/4)=3,求tana
tan(a-π/4)=3
(tana-tanπ/4)/(1+tanatanπ/4) = 3
(tana-1)/(1+tana) = 3
tana-1=3+3tana
2tana=-4
tana=-2