Question: Problem 1(*): Let f : [a, b] - R be a bounded function and P be a partition of [a, b]. Prove that U(-f, P)

Problem 1(*): Let f : [a, b] - R be a
bounded function and P be a partition of [a, b]. Prove that

Problem 1(*): Let f : [a, b] - R be a bounded function and P be a partition of [a, b]. Prove that U(-f, P) = -L(f. P)

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