Trigonometric identities to solve equations – Medium (A Level Only)
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Question 1 of 24
1. Question
Solve 15sin²θ + sinθ = 6 between 0° ≤ θ ≤ 360°
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Question 2 of 24
2. Question
Solve 12sin²θ = sinθ + 1 between -180° ≤ θ ≤ 180°
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Question 3 of 24
3. Question
Solve 15sin²θ = 7sinθ + 4 between 0° ≤ θ ≤ 360°
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Question 4 of 24
4. Question
Solve 10sin²θ + 3sinθ = 4 between -180° ≤ θ ≤ 180°
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Question 5 of 24
5. Question
Solve 8sin²θ + 3 = 10sinθ between -180° ≤ θ ≤ 180°
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Question 6 of 24
6. Question
Solve 15cos²θ = cosθ + 2 between -180° ≤ θ ≤ 180°
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Question 7 of 24
7. Question
Solve 12cos²θ + 5cosθ = 3 between 0° ≤ θ ≤ 360°
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Question 8 of 24
8. Question
Solve 10cos²θ + 2 = 9cosθ between -180° ≤ θ ≤ 180°
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Question 9 of 24
9. Question
Solve 12cos²θ = 5cosθ + 3 between -180° ≤ θ ≤ 180°
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Question 10 of 24
10. Question
Solve 8cos²θ = 2cosθ + 3 between 0° ≤ θ ≤ 360°
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Question 11 of 24
11. Question
Solve 6tan²θ + 1 = 5tanθ between 0° ≤ θ ≤ 360°
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Question 12 of 24
12. Question
Solve 12tan²θ + 13tanθ + 3 = 0 between -180° ≤ θ ≤ 180°
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Question 13 of 24
13. Question
Solve 9tan²θ = 1 between 0° ≤ θ ≤ 360°
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Question 14 of 24
14. Question
Solve 9tan²θ + 1 = 6tanθ between -180° ≤ θ ≤ 180°
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Question 15 of 24
15. Question
Solve 12sin²θ = 13cosθ + 15 between -180° ≤ θ ≤ 180°
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Question 16 of 24
16. Question
Solve 12sin²θ = 7cosθ + 13 between 0° ≤ θ ≤ 360°
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Question 17 of 24
17. Question
Solve 9sin²θ = 9cosθ + 11 between 0° ≤ θ ≤ 360°
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Question 18 of 24
18. Question
Solve 12sin²θ + 8cosθ = 13 between -180° ≤ θ ≤ 180°
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Question 19 of 24
19. Question
Solve 15sin²θ = 13cosθ + 17 between 0° ≤ θ ≤ 360°
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Question 20 of 24
20. Question
Solve 10cos²θ + 7sinθ = 11 between -180° ≤ θ ≤ 180°
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Question 21 of 24
21. Question
Solve 15cos²θ + 2sinθ = 14 between -180° ≤ θ ≤ 180°
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Question 22 of 24
22. Question
Solve 12cos²θ = 4sinθ + 11 between -180° ≤ θ ≤ 180°
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Question 23 of 24
23. Question
Solve 9cos²θ = 6sinθ + 10 between -180° ≤ θ ≤ 180°
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Question 24 of 24
24. Question
Solve 12cos²θ + 13sinθ = 15 between -180° ≤ θ ≤ 180°
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