Short Answer
Use the unit circle and the fact that the sine is an odd function and the cosine is an even function to find the exact value of cos (-225°)
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q85: Graph the function y =<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB10663/.jpg"
Q86: Find the exact value of csc 225°
Q87: Sketch the graph of the function <br>
Q88: Body Temperature. The human body temperature normally
Q89: Graph the function y = <br> <img
Q91: State the domain of the function.<br>Y =<br>
Q92: Body Temperature. The human body temperature normally
Q93: Match the graph of the function over
Q94: Find the exact value of sec<br><img src="https://d2lvgg3v3hfg70.cloudfront.net/TB10663/.jpg"
Q95: Use the unit circle and the fact