Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.2 Antiderivatives, #20 · Calculus · Integrals

Draw an example where three lower rectangles under a curve (heights …)…

Draw an example where three lower rectangles under a curve (heights $m_{1}, m_{2}, m_{3}$ ) have less area than two rectangles.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.2 Antiderivatives, #20

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