Given that y=ln(7x)y = \ln(7x)y=ln(7x), find dydx\frac{dy}{dx}dxdy. Select the correct option:
A: dydx=1x\frac{dy}{dx} = \frac{1}{x}dxdy=x1
B: dydx=7x\frac{dy}{dx} = \frac{7}{x}dxdy=x7
C: dydx=17x\frac{dy}{dx} = \frac{1}{7x}dxdy=7x1
D: dydx=ln(7)\frac{dy}{dx} = \ln(7)dxdy=ln(7)
Practise AQA A Level Maths 1.10 G: Differentiation with exam-style questions for A Level Maths. 321 questions 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), matched to the AQA A Level Maths (7357) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
