A curve has the equation x2+3xy+2x+y2=7x^2 + 3xy + 2x + y^2 = 7x2+3xy+2x+y2=7:
Find an expression for dydx\displaystyle \frac{dy}{dx}dxdy
Find an equation for the tangent to the curve at the point P(1,1)P(1, 1)P(1,1)
375 exam-style questions on AQA A Level Maths 1.10 G: Differentiation, covering 1.10.1 The derivative and second derivative, 1.10.2 Differentiating standard functions, 1.10.3 Applications of differentiation, 1.10.4 Product, quotient and chain rules (A-level only), 1.10.5 Implicit and parametric differentiation (A-level only), and 1.10.6 Constructing differential equations (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.