unit-circle

x axis gives cosine y axis gives sin

to remember these numbers think of the distance on the x axis.

$$\sqrt{(}3)/2>\sqrt{(}2)/2>\sqrt{(}1)/2$$ $$\pi /6<\pi /4<\pi /2$$

Positive and Negatie

• logic is really simple.
• when y values become (-) sin values become (-)
• when x values become (-) cos values become (-)

Hyperbolic Trig Functions

• domain and range of the hyperbolic graphss