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The diagram shows the curve \(y = \sqrt { x - 3 }\).
- Use the trapezium rule, with 4 strips each of width 0.5 , to find an approximate value for the area of the region bounded by the curve, the \(x\)-axis and the line \(x = 5\). Give your answer correct to 3 significant figures.
- State, with a reason, whether this approximation is an underestimate or an overestimate.