# Thread: Evaluate the Six Trig Functions of Each Angle

1. ## Evaluate the Six Trig Functions of Each Angle

Use the definitions (not a calculator) to evaluate the six trig functions of each angle. If a value is undefined, state why.

(1) -pi/3

(2) 450 degrees

2. ## Re: Evaluate the Six Trig Functions of Each Angle

Originally Posted by nycmath
Use the definitions (not a calculator) to evaluate the six trig functions of each angle. If a value is undefined, state why.
(1) -pi/3
(2) 450 degrees

$\dfrac{-\pi}{3}\in IV$. It is the same as $\dfrac{\pi}{3}$ with correct signs. Take a right triangle with sides $1,\sqrt3,2$.

$450^o$ is equiv to $90^o$.