Today we learned more about graphing sine, and cosine, functions. On the unit circle:
sin α= y cosα=x tanα=y/x cscα= 1/y secα=1/x cotα=x/y
We also learned how amplitude changes the y values of the graph and how it is always positive. We also learned about the graph's period, which is the interval it takes for a sin or cos function to complete one cycle. Here is an example of a sine function:
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