化简:1+TANθ/TANθ-1=3+2√2,TANθ的值
问题描述:
化简:1+TANθ/TANθ-1=3+2√2,TANθ的值
答
(tanθ+1)/(tanθ-1)
=1+2/(tanθ-1)
=3+2√2
所以tanθ-1=1/(1+√2)=√2-1
tanθ=√2