2025 IGCSE Additional Mathematics October/November 0606/11 Q3

2025 IGCSE Additional Mathematics October/November 0606/11 Q3

9 marks
  1. Solve the equation \(\log_2x-4=5\log_x2\).[5]
  2. Solve the equation \(\mathrm e^{x^2-3}=25\mathrm e^{7-x^2}\).[4]

Solution:

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Answer:(a) \(x=32,\dfrac12\) (b) \(x=\pm\sqrt{5+\ln5}\)

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