Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The equation for a curve is $2e^{2x}y - y^3 + 4 = 0.$
(a)[4]

Show that $\frac{dy}{dx} = \frac{4e^{2x}y}{3y^2 - 2e^{2x}}.$

(b)[3]

The curve goes through the point $(0, 2)$. Find the equation of the tangent to the curve at this point, giving your answer in the form $ax + by + c = 0.$

(c)[2]

Show that the curve has no stationary points.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: Use the product rule to differentiate $2e^{2x}y$

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