(a)[2]
Using the diagram, draw the graph of $y=\cos x$ for $0^{\circ}\leq x\leq360^{\circ}$.
(b)[3]
Solve $2\cos x+\sqrt{3}=0$ for $0^{\circ}\leq x\leq360^{\circ}$.
Mathematics 0580 · IGCSE · Trigonometric functions
Mathematics 0580 · IGCSE · Trigonometric functions
Using the diagram, draw the graph of $y=\cos x$ for $0^{\circ}\leq x\leq360^{\circ}$.
Solve $2\cos x+\sqrt{3}=0$ for $0^{\circ}\leq x\leq360^{\circ}$.