Q. sin(90° − θ) is equal to:

  • (A) sin θ
  • (B) cos θ
  • (C) tan θ
  • (D) cot θ
✅ Correct Answer: (B) cos θ
Explanation: By the co-function identity, sin(90° − θ) = cos θ.

Published by Roshan ⭐ 3.43K Points at 05-Jul-2026 12:26 pm in Math

Explanation by: Roshan
By the co-function identity, sin(90° − θ) = cos θ.

📝 Notes by Other Students/ Teachers

📊 Question Analytics

👁️
39
Total Visits
📽️
3 mo ago
Published
🎖️
Roshan
Publisher
📈
94%
Success Rate