Trigonometric identities to solve equations – Easy (A Level Only)
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Question 1 of 23
1. Question
Solve sinθ/cosθ=0.02 between -180°≤θ≤180°
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Question 2 of 23
2. Question
Solve sinθ/cosθ=-0.73 between -180°≤θ≤180°
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Question 3 of 23
3. Question
Solve cosθ/sinθ=1.563 between 0°≤θ≤360°
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Question 4 of 23
4. Question
Solve cosθ/sinθ=3.846 between 0°≤θ≤360°
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Question 5 of 23
5. Question
Solve sinθ=9/10 cosθ between 0°≤θ≤360°
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Question 6 of 23
6. Question
Solve sinθ=-1/5 cosθ between -180°≤θ≤180°
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Question 7 of 23
7. Question
Solve cosθ=-3 1/3 sinθ between 0°≤θ≤360°
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Question 8 of 23
8. Question
Solve cosθ=1 2/3 sinθ between -180°≤θ≤180°
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Question 9 of 23
9. Question
Solve 2sinθcosθ=-0.48 between -180°≤θ≤180°
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Question 10 of 23
10. Question
Solve 2sinθcosθ=-0.12 between 0°≤θ≤360°
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Question 11 of 23
11. Question
Solve 2tanθ/(1+tan²θ)=-0.21 between 0°≤θ≤360°
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Question 12 of 23
12. Question
Solve 2tanθ/(1+tan²θ)=-0.72 between -180°≤θ≤180°
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Question 13 of 23
13. Question
Solve cos²θ-sin²θ=0.71 between -180°≤θ≤180°
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Question 14 of 23
14. Question
Solve 2cos²θ-1=0.47 between 0°≤θ≤360°
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Question 15 of 23
15. Question
Solve 1-2sin²θ=0.38 between 0°≤θ≤360°
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Question 16 of 23
16. Question
Solve (1-tan²θ)/(1+tan²θ)=0.15 between 0°≤θ≤360°
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Question 17 of 23
17. Question
Solve 2tanθ/(1-tan²θ)=0.01 between 0°≤θ≤360°
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Question 18 of 23
18. Question
Solve sinθcos2θ+cosθsin2θ=0.21 between -180°≤θ≤180°
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Question 19 of 23
19. Question
Solve sinθcos2θ-cosθsin2θ=-0.15 between -180°≤θ≤180°
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Question 20 of 23
20. Question
Solve 2sin θ/2 cos θ/2=-0.22 between 0°≤θ≤360°
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Question 21 of 23
21. Question
Solve cos2θcosθ-sin2θsinθ=0.08 between 0°≤θ≤360°
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Question 22 of 23
22. Question
Solve cos² θ/2-sin² θ/2=0.51 between -180°≤θ≤180°
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Question 23 of 23
23. Question
Solve (tan2θ-tanθ)/(1-tan2θtanθ)=0.29 between -180°≤θ≤180°
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