(a)[3]
The curve is $y = \frac{1 + x^2}{1 + e^{2x}}$.
(b)[4]
The equation is $2x^3 + 5xy + y^3 = 8$.
Mathematics 9709 · AS & A Level · Differentiation
Differentiation — practice question
For each curve shown below, determine the gradient at the point where the curve meets the $y$-axis:
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