Q. Which identity is correct?

  • (A) 1 + tan²θ = sec²θ
  • (B) 1 + cot²θ = sec²θ
  • (C) 1 + sin²θ = cos²θ
  • (D) 1 + cos²θ = sin²θ
✅ Correct Answer: (A) 1 + tan²θ = sec²θ
Explanation: This is a standard trigonometric identity.

Published by Roshan ⭐ 3.42K Points at 05-Jul-2026 12:25 pm in Math

Explanation by: Roshan
This is a standard trigonometric identity.

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