【已刪除】9.試問 的之值經化簡後為下列何者? (A) sinθ(B) cosθ..-阿摩線上測驗
1F ChHautBrion 高一上 (2014/10/20)
cos(270 + θ)tan(180 - θ)cot(180 + θ) sinθ( -tanθ )( cotθ ) -------------------------------------------- = ------------------------ = tanθ*cotθ = 1
sin(90 - θ)tan(540 - θ) cosθ( -tanθ ) |