Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §3.8 The Mean Value Theorem and l’Hôpital’s Rule, #11 · Calculus · Applications of derivatives

Show that … and … have the same derivative, and draw a…

Show that $sec^{2} x$ and $tan^{2} x$ have the same derivative, and draw a conclusion about $f (x) = sec^{2} x - tan^{2} x$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §3.8 The Mean Value Theorem and l’Hôpital’s Rule, #11

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