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1.8.8 Integration by substitution (A-level only)

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Question 11
a.

The rate of mass accumulation in a sediment trap is modeled by the function R(t)=12t4t+1R(t) = \dfrac{12t}{\sqrt{4t+1}}R(t)=4t+1​12t​, where R R\,R is the rate in grams per day and t t\,t is the time in days since the start of the study. Using a suitable substitution, find the exact mass accumulated during the first 2 days.

[5]
b.

Find ∫6x2−12x−26(x−4)(2x+3) dx\int \dfrac{6x^2 - 12x - 26}{(x - 4)(2x + 3)} \, dx∫(x−4)(2x+3)6x2−12x−26​dx

[5]
Markscheme

1.8.8 Integration by substitution (A-level only) Questions

  1. A Level
  2. /Maths
  3. /1.8.8 Integration by substitution (A-level only)

95 exam-style questions on OCR A Level Maths 1.8.8 Integration by substitution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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