Find: ∫0π4sin3xcos3x dx\displaystyle \int_0^{\frac{\pi}{4}} \sin 3x \cos 3x \, dx∫04πsin3xcos3xdx
221 exam-style questions on WJEC A Level Maths 3.7 Integration (A-level only), covering 3.7.1 Integration (A-level only), 3.7.2 Integration (A-level only), 3.7.3 Integration (A-level only), 3.7.4 Integration (A-level only), 3.7.5 Integration (A-level only), and 3.7.6 Integration (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.