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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.6 Properties of the Integral and Average Value, #19 · Calculus · Integrals

(a) The averages of … and … from 0 to … are…

(a) The averages of $cos x$ and $∣ cos x ∣$ from 0 to $π$ are ______.
(b) The average of the numbers $v_{1}, \dots, v_{n}$ is ______ than the average of $∣ v_{1} ∣, \dots, ∣ v_{n} ∣$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.6 Properties of the Integral and Average Value, #19

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