Question

Can someone please help me

Answer 1

Based on definition of unit circle and angle properties on Cartesian plane, we find the following results: A: π/5, B: 3π/7, C: 4π/3.

How to determine angles in a unit circle

Units circles are commonly used to understand angles and trigonometric functions in a simple way. Vectors in a unit circle are ordered pairs of polar form: (x, y) = (cos θ, sin θ).

To solve this problem, we must take these tips into account:

1. Angles in the first quadrant are within 0 < θ < π/2.
2. Angles in the second quadrant are within π/2 < θ < π.
3. Angles in the third quadrant are within π < θ < 3π/2.
4. Angles in the fourth quadrant are within 3π/2 < θ < 2π.

Then, we have the following results: A: π/5, B: 3π/7, C: 4π/3.

To learn more on angles: brainly.com/question/13954458

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