Class notes
Area
- Institution
- Harvard University
If f(x) ≥ 0, then R b a f(x) dx is the area under the graph of f(x) and above the interval [a, b] on the x axes. If the function is negative, then R b a f(x) dx is negative too and the integral is minus the area below the curve: Therefore, R b a f(x) dx is the difference of the area abov...
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