If cosec 4θ = sec (60° – 2θ), then θ is equal to:
Show answer & explanation
Correct answer: D
Explanation
Correct Answer is option 4 i.e. 15°
| Concept |
| cosec(90 – θ) = sec θ |
| Understanding |
|
Given cosec 4θ = sec (60° – 2θ) |
| Application |
|
cosec 4θ = sec (60° – 2θ) We can write it as: cosec 4θ = cosec[90° – (60° – 2θ)] Comparing: 4θ = 90° – 60° + 2θ ⇒θ = 15° |