| Exam Board | CAIE |
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| Module | P1 (Pure Mathematics 1) |
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| Year | 2018 |
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| Session | November |
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| Topic | Chain Rule |
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2 The function f is defined by \(\mathrm { f } ( x ) = x ^ { 3 } + 2 x ^ { 2 } - 4 x + 7\) for \(x \geqslant - 2\). Determine, showing all necessary working, whether f is an increasing function, a decreasing function or neither.