Home > Resources > Homework > Math > Unit Circle

Find the value of $ cos(frac{pi}{4}) $ on the unit circle.

Answer 1

Abigail Nelson

Mia Harris

On the unit circle, the angle $ \frac{\pi}{4} $ corresponds to 45 degrees. The coordinates of this point are ( \frac{\sqrt{2}}{2}, \frac{\sqrt{2}}{2} ). Therefore,

$ \cos(\frac{\pi}{4}) = \frac{\sqrt{2}}{2} $

Answer 2

Alex Thompson

Samuel Scott

The angle $ frac{pi}{4} $ is 45 degrees. On the unit circle, the cosine of this angle is:

$ cos(frac{pi}{4}) = frac{sqrt{2}}{2} $

Answer 3

Amelia Mitchell

Benjamin Clark

For $ frac{pi}{4} $,

$ cos(frac{pi}{4}) = frac{sqrt{2}}{2} $