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10 cards from this deck
Approximate definite integrals using trapezium shapes
∫abf(x) dx≈b−a2(f(a)+f(b))\int_a^b f(x)\,dx \approx \frac{b-a}{2}(f(a) + f(b))∫abf(x)dx≈2b−a(f(a)+f(b))
When function is linear (straight line)
Overestimate (chord above curve)
Underestimate (chord below curve)
h=b−anh = \frac{b-a}{n}h=nb−a
Curve is concave up
Curve is concave down
First and last once, middle terms twice
No simple antiderivative or only experimental data
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