Understanding how sine and cosine work with the unit circle can be tough for many students. Here are a couple of common problems they face:

1. Getting the Concept:

   • Many students find it hard to understand how angles relate to points on the circle.

2. What Sine and Cosine Mean:

   • Sine (written as $\sin$) is the y-coordinate.
   • Cosine (written as $\cos$) is the x-coordinate of a point on the unit circle.

But don't worry!

With some practice and by drawing the unit circle, students can better understand how these sine and cosine ratios work.

This will make the topic easier to grasp!