what is the value of cos θ in the diagram below?
what is the value of cos θ in the diagram below?
Answer
Explanation:
Step1: Recall cosine - definition on unit - circle
On a unit - circle, for a point $(x,y)$ corresponding to an angle $\theta$, $\cos\theta=x$.
Step2: Identify the x - coordinate
The given point on the unit - circle is $(0.6,0.8)$. The x - coordinate of this point is $0.6$.
Answer:
$0.6$