Edexcel P4 2022 January — Question 8

Exam BoardEdexcel
ModuleP4 (Pure Mathematics 4)
Year2022
SessionJanuary
TopicProof
8. Use proof by contradiction to prove that, for all positive real numbers \(x\) and \(y\), $$\frac { 9 x } { y } + \frac { y } { x } \geqslant 6$$
This paper (9 questions)
View full paper
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q13