Graphs of Trigonometric Functions (HSC SSCE Mathematics Advanced): Quizzes

$(\cos \theta, \sin \theta)$

$1$

$2\pi$

$1$

$[-1, 1]$

Point symmetry about the origin

$x = \frac{\pi}{2} + n\pi$ (n an integer)

Line symmetry about the $y$-axis

$\pi$

$x = \frac{\pi}{2} + k\pi$ (k an integer)