Question 3 - A-Level Maths

Exam Board	CAIE
Module	P3 (Pure Mathematics 3)
Year	2019
Session	June
Topic	Implicit equations and differentiation

3 Find the gradient of the curve \(x ^ { 3 } + 3 x y ^ { 2 } - y ^ { 3 } = 1\) at the point with coordinates \(( 1,3 )\).