A curve has equation
y=6x−2(x+4)2x≠−4,x∈R y = \frac{6x - 2}{(x + 4)^2} \quad x \neq -4, \quad x \in \mathbb{R} y=(x+4)26x−2x=−4,x∈RUse calculus to find the range of values of x x\,x for which y y\,y is increasing.
717 exam-style questions on Edexcel A Level Maths Differentiation, covering 9.1 Differentiating sin x and cos x, 9.2 Differentiating exponentials and logarithms, 9.3 The Chain Rule, 9.4 The Product Rule, 9.5 The Quotient Rule, 9.6 Differentiating Trigonometric Functions, 9.7 Parametric Differentiation, 9.8 Implicit Differentiation, 9.9 Using Second Derivatives, and 9.10 Rates of Change. Each one has a worked solution and a mark scheme showing where the marks go.