(i)[3]
For the curve $y = 4xe^{-3x}$.
(ii)[5]
For $y = \frac{4x^2}{x + 1}$.
Mathematics 9709 · AS & A Level · Logarithmic and exponential functions
Logarithmic and exponential functions — practice question
Find the $x$-coordinates of the stationary points for the curves below:
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This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the product rule to reach an expression of the form $k_1 e^{-3x}+k_2 x e^{-3x}$” …
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