Find: ∫0π4sin2xcos2x dx\displaystyle \int_0^{\frac{\pi}{4}} \sin 2x \cos 2x \, dx∫04πsin2xcos2xdx
8 exam-style questions on Edexcel A Level Maths 11.4 Reverse Chain Rule. Each one has a worked solution and a mark scheme showing where the marks go.