Years 12-13 - 3. Four terms, with a sign check [Extension]
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Years 12-13 | Week 3 | AM-GM inequalities
![Years 12-13: Four terms, with a sign check [Extension] - question, part 1](/uploads/olympiad/club-week34-2026/w3-amgm-03-question-1.svg)
Prepared for the Maths4U Olympiad Club. English worksheet and source references.
![Years 12-13: Four terms, with a sign check [Extension] - hint, part 1](/uploads/olympiad/club-week34-2026/w3-amgm-03-hint-1.svg)
![Years 12-13: Four terms, with a sign check [Extension] - solution, part 1](/uploads/olympiad/club-week34-2026/w3-amgm-03-solution-1.svg)