3. Unit Circle

Find the sine, cosine, and tangent of each angle using the unit circle.

$\theta=-1.18$ rad, $\left(\frac{5}{13},-\frac{12}{13}\right)$

Find the sine, cosine, and tangent of each angle using the unit circle.

$\theta=225\degree,\left(-\frac{\sqrt2}{2},-\frac{\sqrt2}{2}\right)$

Find each exact function value. See Example 2. sin 7π/6

Graph each function over a one-period interval.

y = - (1/2) csc (x + π/2)