1. Let R be the region bounded by the graph of f(x) = 2x² – x + 2 and x-axis F31 between x = 1 and x = 4. 27 a) Approximate the area of R using a left Riemann sum with n = 3 subintervals. Shade in the region whose area is given by the left Riemann sum. 23 19 15 b) Approximate the area of R using a right Riemann sum with n = 3 subintervals. Shade in the region whose area is given by the right Riemann -31 sum. -27 19 15 -11 c) Approximate the area of R using a midpoint Riemann with n = 3 subintervals. Shade in the region whose area is given by the midpoint Riemann sum. 31 +27 -23 19 F15

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