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1. So I'm currently doing a paper specifically on C2.3 for Maths. For it I had to approximate the area under a curve using the Trapezium Rule, which I did (and hopefully got right). The next part of the question dictates why the approximation of the area under the curve curve between two points is either an overestimate or an underestimate. From the shape of the curve, it's an overestimate, but I'm not sure how to explain why it is. Could some one help me explain why?

Thank you
Attached Images

2. Sketch it and show the trapeziums lie above the curve?
3. curve bends inwards into the trapeziums

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Updated: April 14, 2013
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