Using the Unit Circle - High School Math

If you examine the unit circle, you'll see that the value of . You can also get this by examining a cosine graph and you'll see it crosses the point .

If you examine the unit circle, you'll see that the the . If you were to graph a sine function, you would also see that it crosses through the point .

Using the unit circle, you can see that . If you were to graph a cosine function, you would also see that it crosses through the point .

If you look at the unit circle, you'll see that . You can also think of this as the cosine of , which is also .

If you look at the unit circle, you'll see that . You can also think of this as the sine of , which is also .

Using the unit circle, . You can also think of this as the sine of , which would also be .

Using the unit circle, you can see that the . Since the angle is in Qudrant II, sine is positive and cosine is negative.

Using the unit circle, . You can also think of this as the sine of , which would also be .

Using the unit circle, . You can also think of this as the cosine of , which would also be .