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1.1.4 Proof by contradiction (A-level only)

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Question 74

An experimental study of fluid dynamics uses a parameter β\betaβ to model the flow rates at three specific pressure points. The flow rates are given by the expressions β\betaβ, 2β+12\beta + 12β+1, and 3β+33\beta + 33β+3, where β\betaβ is a real constant. Use proof by contradiction to show that it is impossible for these flow rates to form a geometric progression.

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1.1.4 Proof by contradiction (A-level only) Questions

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