Recent content by Zeihl

  1. Z

    How Do Trig Identities Help Calculate Derivatives?

    Weird, I had edited it earlier with my work, but I suppose the internet messed up when trying to submit. Anyways, I believe I have it correct, thanks anyways.
  2. Z

    How Do Trig Identities Help Calculate Derivatives?

    1. Find the limit of [Cos(x+h)-Cos(x)]/h as h approaches 0 2. Solve using trig identity cos(A+B)= cos(A)cos(B)-sin(A)sin(B) 3. My first class using the actual definition of a derivative. My high school teacher just showed us the shorthand and said "good luck when you get to...
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