 Solution

ID: past-exam-of-the-mathematical-and-computational-biology-course-of-the-university-of-cambridge/2025/paper-1/5/a/solution

f^{'} (x) = 1 - (lo g x + 1) = - lo g x, f^{''} (x) = - 1/ x .

In particular, the second derivative is negative throughout the domain.

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