Let f(x) = x and I = [0, 1]. If P is the partition given by P = {0, 1/8.1/4, 1/3, 2/3, 3/4, 1} and it's norm is ||P|| = 1/3, what is the lower Riemann sum of f with respect to P and the upper Riemann sum of f with respect to P? Rectangu

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