What point on the unit circle goes with an angle of 360 degrees?

Match the identities we learned in class and from the Trigonometry and Circles section of the Magic of Trigonometry reading*   *note: please recall you are not allowed to look it up now; you are not allowed to use any notes or outside help of any kind; you may use only pencil, paper, and scientific calculator if needed.

Consider a right triangle with hypotenuse length 2 and one leg length 1.  What is the exact length of the other leg?

What’s the sine of 150 degrees?

What’s the sine of zero?

In a 45-45-90 triangle, the side lengths are proportional to

cosine of 45 degrees is:

Convert from degrees to radians.

  Assume each unique shape/color combination is a species. What is the gamma diversity of these three communities?

As an angle changes from 0 degrees to 90 degrees, the tangent of the angle ranges