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
11.5 Integration by Substitution Questions
59 exam-style questions on Edexcel A Level Maths 11.5 Integration by Substitution. Each one has a worked solution and a mark scheme showing where the marks go.