Let Ln denote the left-endpoint sum using n subintervals and let Rn denote the corresponding right-endpoint sum. In the following exercises, compute the indicated left and right sums for the given functions on the indicated interval. 12. L4 for f(x) = on [2, 3] 1 x-1 16. R4 foron [-2, 2]

Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let \( L_n \) denote the left-endpoint sum using \( n \) subintervals, and let \( R_n \) denote the corresponding right-endpoint sum. In the following exercises, compute the indicated left and right sums for the given functions on the indicated interval.

12. \( L_4 \) for \( f(x) = \frac{1}{x-1} \) on \([2, 3]\)

16. \( R_4 \) for \( \frac{1}{x^2+1} \) on \([-2, 2]\)
Transcribed Image Text:Let \( L_n \) denote the left-endpoint sum using \( n \) subintervals, and let \( R_n \) denote the corresponding right-endpoint sum. In the following exercises, compute the indicated left and right sums for the given functions on the indicated interval. 12. \( L_4 \) for \( f(x) = \frac{1}{x-1} \) on \([2, 3]\) 16. \( R_4 \) for \( \frac{1}{x^2+1} \) on \([-2, 2]\)
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