An engineer studying signal processing identifies a scaling factor S=log23S = \log_{2} 3S=log23.
Use the method of proof by contradiction to prove that SSS is an irrational number.
Practise Edexcel A Level Maths 1.1 Proof by Contradiction with exam-style questions for A Level Maths. 100 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.