CAIE IGCSE Mathematics E6.4.1 Trigonometric functions

Practise sketching sine and cosine graphs over 0° to 360° and solving trigonometric equations with all valid angles in range.

Exam points

solve trig equations over 0° to 360°, giving both valid angles when required
use quadrant facts to handle reflex angles and angle pairs with matching sine or cosine values

[Maximum number: 4]

(a)

On the axes, sketch the graph of $y=\sin x$ for $0^{\circ} \leqslant x \leqslant 360^{\circ}$ .

[ 2 ]

(b)

Describe fully the symmetry of the graph of $y=\sin x$ for $0^{\circ} \leqslant x \leqslant 360^{\circ}$ .

[ 2 ]

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