余割函数
cosecant function Denoted $\csc \theta$, defined as the reciprocal of sine, i.e., $\csc \theta = \frac{1}{\sin \theta}$.
CSCA 数学 考试术语
cosecant function Denoted $\csc \theta$, defined as the reciprocal of sine, i.e., $\csc \theta = \frac{1}{\sin \theta}$.
CSCA 数学 考试术语