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Mathematics — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward initial-understanding
Which of the following is the correct value of tan 60°? (A) 1/√3 (B) √3 (C) 1 (D) √3/2
  1. A 1/√3
  2. B √3
  3. C 1
  4. D √3/2
Generated by claude-sonnet-4-6 · 2026-06-15 10:21 · grounding rag
Model Answer

(B) √3

tan 60° = √3, as given in the standard trigonometric ratio table (Table 8.1).

Source: Chapter 8, Section 8.3 Trigonometric Ratios of Some Specific Angles

Explanation

From the equilateral triangle derivation in Section 8.3, tan 60° = AD/BD = a√3/a = √3. Students often confuse tan 30° = 1/√3 with tan 60° = √3. Remember: as the angle increases from 0° to 90°, tan increases, so tan 60° > tan 30°.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.