So the week before last, I was crazy sick. This week people took tests and hung out with Mrs. FeFe. That means that I really didn't learn anything. I stole notes from Lauren Louque, but I really don't understand them that well.
Here's an example of things I have in my notes.
From 10-4
cos2x = cos x
2cos^2x-1 = cosx
2cos^2x-cosx-1 = 0
2cos^2x-2cosx+cosx-1
2cosx(cosx-1) + (cos-1)
(2cosx+1) (cosx-1)
cosx = 1/2
I'm still having trouble with this stuff. But hopefully I can get some help.
Anyway,
HAPPY HALLOWEEN!!!
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