Use the substitution u=x2+4u = x^2 + 4u=x2+4 to find ∫2xx2+4dx\displaystyle \int \frac{2x}{x^2 + 4} dx∫x2+42xdx
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Markscheme
1.9.28 Integration by substitution (other cases) (A-level only) Questions
59 exam-style questions on OCR (MEI) A Level Maths 1.9.28 Integration by substitution (other cases) (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.