The average value of the function f(x) = (2) cos(4) on the interval [2, 20] is: sin(x/20) A) B) C) D) 1- ≈ 4218 9(sin(x/20)- sin(x/2)) = -7.592 sin(x/20) _ sin(x/2) = -4218 (sin(20)- sin(2)) = .0018

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