Lemma
MediumDifferentiation rules
Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §4.1 The Chain Rule, #42 · Calculus · Differentiation rules

On the same graph draw … and … (… upwards for both)

On the same graph draw and ( upwards for both). Starting at find on the graph.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §4.1 The Chain Rule, #42

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