Find the value of $ cos( heta) $ when $ heta $ is on the Unit Circle at specific points

To find the value of $ \cos(\theta) $ on the Unit Circle at specific points, consider the following:

• When $ \theta = 0 $:

$ \cos(0) = 1 $

• When $ \theta = \frac{\pi}{2} $:

$ \cos\left(\frac{\pi}{2}\right) = 0 $

• When $ \theta = \pi $:

$ \cos(\pi) = -1 $

• When $ \theta = \frac{3\pi}{2} $:

$ \cos\left(\frac{3\pi}{2}\right) = 0 $

• When $ \theta = 2\pi $:

$ \cos(2\pi) = 1 $

To determine $ cos( heta) $ on the Unit Circle at specific points:

• At $ heta = 0 $, $ cos(0) = 1 $
• At $ heta = frac{pi}{2} $, $ cosleft(frac{pi}{2}
  ight) = 0 $
• At $ heta = pi $, $ cos(pi) = -1 $
• At $ heta = frac{3pi}{2} $, $ cosleft(frac{3pi}{2}
  ight) = 0 $
• At $ heta = 2pi $, $ cos(2pi) = 1 $

Find $ cos( heta) $ on the Unit Circle at specific points:

$ cos(0) = 1 $

$ cosleft(frac{pi}{2}
ight) = 0 $

$ cos(pi) = -1 $

$ cosleft(frac{3pi}{2}
ight) = 0 $

$ cos(2pi) = 1 $

Start Using PopAi Today