Natural logarithm derivatives
Natural logarithm derivatives
4 marks
TGM Original
Given y=ln(x2 + 4), find dydx. Hence find its value at x=1.
Solution:
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Answer:\(\dfrac{\mathrm{d}y}{\mathrm{d}x}=\dfrac{2 x}{x^{2} + 4}\); at \(x=1\), \(\dfrac{2}{5}\).
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