Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §6.6 Powers Instead of Exponentials, #4 · Calculus · Applications of derivatives

By comparing … with a larger series (whose sum is easier) show…

By comparing $e = 1 + 1 + \frac{1}{2} + \frac{1}{6} + \frac{1}{24} + \dots$ with a larger series (whose sum is easier) show that $e < 3$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §6.6 Powers Instead of Exponentials, #4

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