On a separate piece of paper, sketch a unit circle with angle θ in standard position. Use the circle to answer the following questions: For what values of θ is the sine increasing? Decreasing? For what values of θ is the cosine increasing? Decreasing? For which angle between 0° and 360° is sine equal to 0? Where is cosine equal to 0?

I'm really confused about the Unit Circle because textbooks are basically useless. Also how do you make an angle of θ if they don't tell you what it is? I know it's the degree of the angle but they don't say. help please!!

Question

On a separate piece of paper, sketch a unit circle with angle θ in standard position. Use the circle to answer the following questions: For what values of θ is the sine increasing? Decreasing? For what values of θ is the cosine increasing? Decreasing? For which angle between 0° and 360° is sine equal to 0? Where is cosine equal to 0?

I'm really confused about the Unit Circle because textbooks are basically useless. Also how do you make an angle of θ if they don't tell you what it is? I know it's the degree of the angle but they don't say. help please!!

rosedewittbukater · Answer

@Mertsj Do you think you could try to help me?

rosedewittbukater · Answer

@mathslover Help me please? I really don't understand it. At times I think I do, but then end up thinking I'm wrong again.

mathslover · Answer

http://openstudy.com/study#/updates/517ec5c7e4b0ad25bbe3abc7 Sorry, I am busy right now. So please go through the above link.

rosedewittbukater · Answer

It's ok. Thank you anyways.