WJEC Unit 3 2024 June — Question 5

Exam BoardWJEC
ModuleUnit 3 (Unit 3)
Year2024
SessionJune
TopicProof

5. Prove by contradiction the following proposition: When \(x\) is real and positive, \(x + \frac { 81 } { x } \geqslant 18\).
\section*{PLEASE DO NOT WRITE ON THIS PAGE}