Question

Lower Riemann Sum = L (P, f) =?​

Answer 1

Answer:

The numbers U(P, f) and L(P, f) are called upper and lower Riemann sums for the partition P (see Figure 2). (1) and (2) are called upper and lower Riemann integrals of f over [a, b] respectively. If the upper and lower integrals are equal, we say that f is Riemann integrable or integrable.

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