Question

Evaluate the sinecosine and tangent of the following angle without the use of a calculator
a. 225 degrees
b.750 degrees

Answer 1

find terminal angle

Answer 2

225 = 180 + 45
in third quadrant
sin = -1/sqrt 2, cos = -1/sqrt 2 and tangent = 1

Answer 3

find 225 degrees on unit circle on the last page of the cheat sheet. first coordinate is cosine, second coordinate is sine, etc

Answer 4

great cheat sheet

Answer 5

i was about to make one myself when i found this one on paul's notes and thought "why bother?"