Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §6.4 Logarithms, #69 · Calculus · Differentiation rules

A weaker ant slows down to … feet/second, so

A weaker ant slows down to $2/ (t + 2)$ feet/second, so $y^{'} = 2/ (t + 2)^{2}$ . Show that the other end is never reached.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §6.4 Logarithms, #69

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