Question

Point P is on the terminal side of angle
`\theta`. Find cos
`\theta`. Point P is located at (-3,0).

Answer 1

cos(θ) = -1

Explanation:

When point P is located at (-3, 0) on the terminal side of angle θ, we can directly apply our knowledge of the unit circle to determine the value of cos(θ).

From the unit circle, we know that for any point (-x, 0), the cosine value is cos(θ) = -1 and the sine value is sin(θ) = 0.

So, in this case, cos(θ) = -1 because point P is on the negative part of the x-axis.