正切函数
tangent function Denoted $\tan \theta$, defined as the ratio of sine to cosine, i.e., $\tan \theta = \frac{\sin \theta}{\cos \theta}$.
CSCA 数学 考试术语
tangent function Denoted $\tan \theta$, defined as the ratio of sine to cosine, i.e., $\tan \theta = \frac{\sin \theta}{\cos \theta}$.
CSCA 数学 考试术语