The curve CCC has equation
y=(x3−7)4 y = (x^3 - 7)^4 y=(x3−7)4Find dydx\dfrac{dy}{dx}dxdy.
The point P(2,1)P(2, 1)P(2,1) lies on CCC. Find the equation of the normal to CCC at PPP. Write your answer in the form ax+by+c=0ax + by + c = 0ax+by+c=0, where a,ba, ba,b and ccc are integers to be found.
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.