Express cos2β \cos^2 \beta\,cos2β in terms of cos2β\cos 2\betacos2β.
Find ∫cos2β dβ\int \cos^2 \beta \, d\beta∫cos2βdβ.
59 exam-style questions on CCEA A Level Maths 3.6.1 Integration (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.