0580/23 May/Jun 2024, Question 22: Trigonometric Graphs and Equations
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 3 marks
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The question, in short
Solve tan x + √3 = 0 for x between 0° and 360°, giving all angles in the range.
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Solution · 3 marks
- 1tan x = −√3
- 2tan⁻¹(√3) = 60°
- 3x = 180 − 60 = 120° or x = 360 − 60 = 300°
Answer120, 300
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