- A30°
- B60°
- C45°
- D15°
Step-by-Step Solution
sec θ − tan θ = 1/√3. Adding: 2 sec θ = √3 + 1/√3 = 4/√3, so sec θ = 2/√3, cos θ = √3/2 and θ = 30°.
Answer: A) 30°
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