For the angle in Exercise 33, find cos and sec. Data from Exercises 33 If the angle

For the angle in Exercise 33, find cosθ and secθ.

Data from Exercises 33

If the angle θ intersects the unit circle at exactly (0.28, 0.96), find sinθ and cscθ.

Data from Example 5

(a) Use the unit circle to find cos 90° and sin 90°. A 90° angle, when placed in standard position, intersects the unit circle at the point (0, 1). Therefore, cos 90° = x = 0 and sin 90° = y = 1.

(b) Find cosθ and csc θ if the terminal side of θ (in standard position) intersects the unit circle at the point (0.6, 0.8). We know that cosθ = x = 0.6. Since sinθ = y = 0.8, cscθ is the reciprocal of 0.8.

Thus,

Transcribed Image Text:

csc 0 || = -13 || 0.8 ∞0 || El