Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.	If sin 3θ = cos (θ – 6°), where 3θ and θ – 6° are acute angles, find the value of θ.
Answer» sin 3θ = cos (θ – 6°) ⇒ cos (90° – 3θ) = cos (θ – 6°) ⇒ 90° – 3θ = θ – 6° ⇒ 4θ = 96° ⇒ θ = 24°.

If sin 3θ = cos (θ – 6°), where 3θ and θ – 6° are acute angles, find the value of θ.

Answer»

sin 3θ = cos (θ – 6°)

⇒ cos (90° – 3θ) = cos (θ – 6°)

⇒ 90° – 3θ = θ – 6° ⇒ 4θ = 96° ⇒ θ = 24°.

Discussion