登入
Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 3 - No. 1)
Which trigonometric ratio is the reciprocal of cosine?
Sine
Secant
Tangent
Cosecant
解释
The secant is the reciprocal of cosine.
评论 (0)
登录发表评论
广告
允许 javascript 正确加载此页面