which of the following correctly use the special triangle on the unit circle to determine 0 in degrees when cox0=2squared/2? you may assume that 0degrees greater than or equal to 0 greater than or equal to 180 degrees

Answer 1

The correct equation using the special triangle on the unit circle to determine 0 in degrees when cos(0) = 2√2/2 is:

cos(0) = 2√2/2

Since 2√2/2 simplifies to √2, we have:

cos(0) = √2

To determine 0 in degrees, we can use the fact that cosine is the x-coordinate on the unit circle. Since cos(0) = √2, we look for the angle on the unit circle where the x-coordinate is √2.

On the unit circle, the x-coordinate is √2 at the angle 45 degrees or π/4 radians. Therefore, the correct answer is:

0 = 45 degrees