Advanced Trigonometry, SMB-036 Find all the values of \(\theta\), where \(0^{\circ} \leq \theta \leq 360^{\circ}\), such that \(\cos\,\theta=\dfrac{\sqrt{3}}{2}\) (2 marks) --- 6 WORK AREA LINES (style=lined) --- Show Answers Only \(\theta=30^{\circ}, 330^{\circ}\) Show Worked Solution \(\text{Reference angle:}\ \ \cos\,\theta=\dfrac{\sqrt{3}}{2}\ \ \Rightarrow \ \ \theta = 30^{\circ}\) \(\text{cos is positive in 1st/4th quadrants.}\) \(\theta=30^{\circ}, (360-30)^{\circ}=30^{\circ}, 330^{\circ}\)