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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.1 The Idea of the Integral, #12 · Calculus · Integrals

The same pessimist would redraw Figure 5.2 with heights

This problem is about the company earning $x$ per year.

The same pessimist would redraw Figure 5.2 with heights $0, 1/4, \dots$ . What is the height of the last rectangle? How much does this change reduce the total rectangular area $5.56$ ?

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.1 The Idea of the Integral, #12

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