Mathematics 0580 · IGCSE · Trigonometric functions

Trigonometric functions — practice question

An axis diagram is displayed with $x$ running from 0 to 360 and $y$ running from -1 to 1.
(a)[2]

Sketch the graph of $y = \sin x$ over $0^{\circ} \le x \le 360^{\circ}$.

(b)[3]

Solve $3 - 2\sin x = \frac{13}{4}$ on $0^{\circ} \le x \le 360^{\circ}$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: A correct sine curve that goes through $(0,0)$, $(180,0)$ and $(360,0)$

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