(a)[3]
Find $f'\left(\frac{1}{4}\pi\right)$.
(b)[3]
Find the indefinite integral $\int f(x)\, dx$.
Mathematics 9709 · AS & A Level · Algebra
Algebra — practice question
Define $f(x) = 4\sin^2 3x$.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Differentiate to produce a result in the form $k\sin3x\cos3x$ or $k\sin6x$” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI