Use the substitution u=x4+1u = x^4 + 1u=x4+1 to find ∫122x3(x4+1)2dx\int_1^2 2x^3(x^4 + 1)^2 dx∫122x3(x4+1)2dx.
363 exam-style questions on CCEA A Level Maths 3.6 Integration (A-level only), covering 3.6.1 Integration (A-level only), 3.6.2 Integration (A-level only), 3.6.3 Integration (A-level only), 3.6.4 Integration (A-level only), 3.6.5 Integration (A-level only), 3.6.6 Integration (A-level only), and 3.6.7 Integration (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.