| Exam Board | OCR |
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| Module | C2 (Core Mathematics 2) |
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| Year | 2008 |
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| Session | January |
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| Topic | Area Under & Between Curves |
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2 Use the trapezium rule, with 3 strips each of width 2, to estimate the value of
$$\int _ { 1 } ^ { 7 } \sqrt { x ^ { 2 } + 3 } \mathrm {~d} x$$