Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §4.4 Inverses of Trigonometric Functions, #50 · Calculus · Differentiation rules

(recommended) With …, find the derivative of

(recommended) With $u (x) = (x - 1) / (x + 1)$ , find the derivative of $tan^{- 1} u (x)$ . This is also the derivative of ______. So the difference between the two functions is a ______.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §4.4 Inverses of Trigonometric Functions, #50

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