Question 19 — IGCSE 0580 May/June 2023 Paper 21
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Trigonometry · Graphs of trigonometric functions. Worth 5 marks.
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Question text
19 (a) On the diagram, sketch the graph of y = cosx for 0° G x G 360°.
y
1
0 180° 360° x
– 1
[2]
(b) Solve the equation 5cosx+3 = 0 for 0° G x G 360°.
x = .................... or x = .................... [3]
© UCLES 2023 0580/21/M/J/23
11
2
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