7. 如下圖所示: = 1, ∠ABC = ∠ADE = 90◦, ∠CAE = α, ∠EAF = β, 則下列何者敘述正確(A) (B) = tan β(C) = tan α − ta

問題詳情

7. 如下圖所示:

= 1, ∠ABC = ∠ADE = 90◦, ∠CAE = α, ∠EAF = β, 則下列何者敘述正確
(A)

(B)

= tan β
(C)

= tan α − tan β
(D)

= tan α tan β
(E)

= tan(α − β)

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)