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Calculate the gradient of the curve $x^{3} + 3xy^{2} - y^{3} = 1$ at the point $(1, 3)$.
Mathematics 9709 · AS & A Level · Differentiation
Differentiation — practice question
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State or indicate $3y^2+6xy\frac{dy}{dx}$ as the derivative of $3xy^2$” …
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