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3.7.4 Integration (A-level only)

Which differentiation rule does integration by substitution reverse?

A

x2e2x−14e2x+C\displaystyle \frac{x}{2}e^{2x}-\frac14e^{2x}+C2x​e2x−41​e2x+C

B

The chain rule.

C

Choose u=xu=xu=x.

D

For a nonzero function fff, ∫f′(x)f(x) dx\displaystyle \int \frac{f'(x)}{f(x)}\,dx∫f(x)f′(x)​dx === ln⁡∣f(x)∣+C\boxed{\ln|f(x)|+C}ln∣f(x)∣+C​.

3.7.4 Integration (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /3.7.4 Integration (A-level only)

Flashcards for WJEC A Level Maths 3.7.4 Integration (A-level only), covering the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4. 21 cards, matched to the WJEC A Level Maths (1300QS) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.