1) (20 pts.) Evaluate _ (2x2 + 1)dxby using the Riemann sum. Partition the interval [ -1, 1 ] into n equal subintervals each of
1) (20 pts.) Evaluate _ (2x2 + 1)dxby using the Riemann sum. Partition the interval [ -1, 1 ] into n equal subintervals each of length Ax = - IN . In each interval [x 1, x; ], use n x, = x, as the sample point. Check your result by direct integration. Show your work
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