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What is 1 + tan² θ equal to?

medium MCQ Class 10 · Mathematics · Introduction to Trigonometry
  1. sec² θ
  2. cosec² θ
  3. cot² θ
  4. 1
Answer
sec² θ

The correct answer is sec² θ — Identity: 1 + tan² θ = sec² θ.

Step-by-step solution

  1. Identity: 1 + tan² θ = sec² θ.

Concept tested: Trigonometric Identities

Published · How this solution was prepared and checked

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