Still Y in the vertical axis, but I'm gonna graph the graph Unit circle, and then those, the Y coordinate of that point is going to be sine of theta. This is X, and this is Y, or you could even do this, as the, well, we can just use X or Y,Īnd so for a given theta we can see where that angleĮntered to the terminal side of the angle intersects the ![]() Gonna use that to figure out the values of sine of On the left hand side right over here, and I'm ![]() I don't need that space right there, so let me clear that out. Over here I've got a unit circle, and I can, let me Let's actually draw the sine function out,Īnd what I have here, on the left hand side right What are the domain and range of the sine function? So to think about that,
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