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Published online by Cambridge University Press: 03 November 2016
Questions on differentiating from first principles many of the elementary functions, such as sin x, xn , log x, ax , are still often set in examination papers on elementary Differential Calculus, in spite of the difficulties of evaluating rigorously the necessary limits.
Page 375 of note * Pure Mathematics (1925), p. 389.
Page no 375 not † See, for example, Durell, and Robson, , Elementary Calculus, II, p. 251 Google Scholar seq.