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1.9.12 Product rule (A-level only)

1.9.12 Product rule (A-level only)

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Question 28

The acoustic power PPP of a specialized sonar pulse is modeled as a function of its frequency fff (in kHz) by the equation

P(f)=f−10e0.05f+4,f>0 P(f) = f^{-10} e^{0.05f + 4}, \quad f > 0 P(f)=f−10e0.05f+4,f>0

Show that the power PPP has exactly one stationary point. Fully justify your answer.

[5]
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1.9.12 Product rule (A-level only) Questions

  1. A Level
  2. /Maths
  3. /1.9.12 Product rule (A-level only)

30 exam-style questions on OCR (MEI) A Level Maths 1.9.12 Product rule (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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