2025 IGCSE Additional Mathematics October/November 0606/21 Q7

2025 IGCSE Additional Mathematics October/November 0606/21 Q7

6 marks

Show that the curve \(y=x-\ln(x^2+2x)\) has exactly one stationary point.

Find the \(x\)-coordinate of this point.[6]

Solution:

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Answer:Shown; \(x=\sqrt2\).

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