化简{(tan^2a/3)/(tana/3)

化简{(tan^2a/3)/(tana/3) 化简:tana+tan(派/2+a)+4tana/1-tanatana tana+1/tana=3,求sina*cosa tan^2 a+1/tan^2 a tan²a-2tana-3=0.tana=3或tana=-1 化简3+tan(A+60°)tan(A-60°)+tanA·tan(A+60°)+tanA·tan(A-60°) 若锐角A满足tanA+1/(tanA)=3,则tan^2A+1/(tan^2A)=? 化简:(1/tan(a/2)-tana/2)(1+tanatana/2) 已知tan a/2=3,则tana=? 化简tana+(1+tana)tan(π/4-a) 已知1-tanA/1+tanA=2+根号3,则tan(π/4+A)是 求证tan(A/2)-{1/(tanA/2)}=-2/tanA 求证tan(a/2)-1/(tana/2)=-2/tana tan(a+b)-1/tana=2*tana 请化简! 已知tan(2a-β)=2/3 ,tan(a-β)=3/5 求 tana 证明tan3a=3tana-tan^3a/1-3tan^2a tana=2,tan(b-a)=3,则tan(b-2a) tana=0.5 tan(a-b)=-2/3求tan(b-2a) tan(2a+b)=3,tan(a+b)=1,tana=