Example: we want to find an n-3 Riemann Sum to estimate the net signed area trapped by f (x) on the interval -5 ≤x≤ 10. For this example, 2 . The notation f(x) Az represents a Left Riemann Sum i=0 • The factor Ax equals 5 • The gridpoints 0, 1, 2 have values 0, 1, 2

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