Today we learned how to prove and not prove identities. We learned the steps and we did examples. Steps(proving not an identity): 1) Plug a value into each side of the equation 2) Simplify both sides 3) check and see if they equal each other. Steps (proving an identity): 1) start with the more complicated side of the equation 2) use cos/sin to simplify 3) other strategies like factoring, and foiling may help. We also learned that you need to know the identities in order to be able to prove identities. Two examples we did are 2sin=sin(2) and 1+secx sinx tanx= sec^2x.
Next Scribe: Alex
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