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3.6 Differentiation (A-level only)

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Question 37

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)

[2]
Markscheme

3.6 Differentiation (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.6 Differentiation (A-level only)

332 exam-style questions on WJEC A Level Maths 3.6 Differentiation (A-level only), covering 3.6.1 Differentiation (A-level only), 3.6.2 Differentiation (A-level only), 3.6.3 Differentiation (A-level only), 3.6.4 Differentiation (A-level only), 3.6.5 Differentiation (A-level only), 3.6.6 Differentiation (A-level only), 3.6.7 Differentiation (A-level only), and 3.6 Differentiation (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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