- What is this video about?
There are four videos for each of the graphs. They explain how cosecant, secant, tangent, and cotangent relate to the graph of cosine and sine. There are details about the asymptotes of each graph. Also, the videos use the Unit Circle ratio in order to give a good explanation for the relation between the trigs.
- What does the viewer need to pay special attention to in order to understand the concept?
The readers should focus on where the actual REAL GRAPH for cosecant and secant. The graph of cosine and sine affect the graph of each trig function differently. They might be confusing but the Unit Circle will help out.
From math.tutorvista.com
Both the images look exactly the same but they are not. There will be one that is cosecant and the other is secant. Which one is which? Well, look back at sine and cosine graph. It will help to identify which graph belong to which trig.
Good source to take a look: http://www.regentsprep.org/Regents/math/algtrig/ATT7/othergraphs.htm
This explains more detail about the asymptotes of tangent, cotangent, cosecant, and secant. It also provides image next to each trig to make the readers understand easily.
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