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  1. Hazabot

    Just a few small Integration questions I have run into.

    1. Is it true that -log(cosx) = log(secx)? As it says in this answer sheet that my Teacher gave me? If so why? 2. Are the proofs that abs(cos(theta)) = cos(theta) necessary in the HSC if so, can someone please explain them? 3. I noticed in the Standard Integrals sheet for Ext 2 2014 there was...
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