The Unit Circle (Leaving Cert Mathematics): Quizzes

$1$ unit

$(\cos, \sin)$

$\frac{\pi}{2}$

Quadrant I

At $90°$

$(-1,0)$

$\sin/\cos$

$\left(\frac{\sqrt{2}}{2}, \frac{\sqrt{2}}{2}\right)$

IV

$-1$