Question

evaluate. write your answer in simplified, rationalized form. do not round.
cos(0) =

Explanation:

Step1: Recall the cosine value of 0

The cosine of 0 radians is a well - known value from the unit circle. On the unit circle, for an angle \(\theta = 0\), the coordinates of the point are \((x,y)=(1,0)\). The cosine function is defined as \(\cos\theta=x\).

Answer:

\(1\)