tanθ÷(1+tan²θ)=(-√3÷4)怎么化简
根号3tan(pai/6-θ)tan(pai/6+θ)+tan(pai/6-θ)+tan(pai/6+θ)=?
若(1-tanα)/(1+tanα)=4+√5,则tan(π/2-2α)的值
已知α为锐角,tanα+1/tanα=(4/3)√3,求α的度数
如何证明tanαtanβ+tan(90°-α-β)tanα+tan(90°-α-β)tanβ=1
已知sinθ+cosθ=((√3)+1)/2,求(sinθ)/(1-(1/tanθ))+(cosθ)/(1-tanθ)的
设θ为锐角,(1-tanθ)/ (1+tanθ)=3+2√2,则sinθcosθ=?
已知3+tanθ1−tanθ
tan(π/6 -θ )+tan(π/6+θ)+根号3tan(π/6-θ)tan(π/6+θ)化简这个式子,
求值tan(π/6-θ)+tan(π/6+θ)+√3tan(π/6-θ)tan(π/6+θ)
已知tan a=3,求tan(a+π/4),tan(a-π/4)的值?
若tanα=1/3,tan(β-α)=-2,则tanβ的值为
tan²θ-tanθ+根号3-根号3tanθ=0,则θ=?