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Thank you, Professor Rogers. As with your answer to my previous question, you have provided quite useful information to me and I am grateful. I appreciate your style, and I am making notes-to-self about it for future use. * * * Rergarding...
Well, it looks to me as if the statement "expressions are the same only if x > 0" should read "Abs[x] > 1" -- which is the domain of ArcSec. Also, the result for "eq" does not seem helpful because the numerator will always be zero. * * * I...