Question 3 - A-Level Maths

Exam Board	OCR MEI
Module	Paper 2 (Paper 2)
Session	Specimen
Topic	Standard Integrals and Reverse Chain Rule

3 Evaluate \(\int _ { 0 } ^ { \frac { \pi } { 12 } } \cos 3 x \mathrm {~d} x\), giving your answer in exact form.