Prove that the function h(x)=x is Riemann integrable on [0,1].
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Hi, For any $\displaystyle P$, we have $\displaystyle U_{f}(P) - L_{f}(P) = \sum (\Delta x_{i})^2 \leq |P|\sum \Delta x_{i},...$
even easier since is continuous on that compact set.
True, but given the question posted, that theorem most likely has not been proved yet.
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