| Exam Board | OCR |
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| Module | C4 (Core Mathematics 4) |
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| Year | 2016 |
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| Session | June |
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| Topic | Standard Integrals and Reverse Chain Rule |
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2 Use integration to find the exact value of \(\int _ { \frac { 1 } { 16 } \pi } ^ { \frac { 1 } { 8 } \pi } \left( 9 - 6 \cos ^ { 2 } 4 x \right) \mathrm { d } x\).