nathanralph
New member
- Joined
- Aug 27, 2005
- Messages
- 27
Ok so here's the problem I have. The instructions are "Find the exact values of sin2(theta), cos2(theta), tan2(theta) for the give values of (theta).
1. cos(theta)= 3/5 0degrees < (theta) < 90degrees
2. sec(theta)=-3 90degrees < (theta) < 180degrees
3. sin(theta)=-(4/5) 270degrees < (theta) < 360degrees
Well, I can solve the problems for the most part...I just don't understand the relevancy of the second part of the question. What does it matter if theta is greater than 270, but less than 360. How does this affect it?
1. cos(theta)= 3/5 0degrees < (theta) < 90degrees
2. sec(theta)=-3 90degrees < (theta) < 180degrees
3. sin(theta)=-(4/5) 270degrees < (theta) < 360degrees
Well, I can solve the problems for the most part...I just don't understand the relevancy of the second part of the question. What does it matter if theta is greater than 270, but less than 360. How does this affect it?