Reciprocal Trig Functions - Definitions (Edexcel A-Level Mathematics): Quizzes

$\frac{1}{\sin \theta}$

$\frac{\cos \theta}{\sin \theta}$

$90°, 270°$

When $\sin \theta = 0$

$(-\infty, -1] \cup [1, \infty)$

It decreases

$\sec^2 \theta = 1 + \tan^2 \theta$

$\csc^2 \theta = 1 + \cot^2 \theta$

$1$

$\frac{10}{9}$