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Class 12 Inverse Trigonometric Functions · Conceptual Answer1 Marksprincipal_values

Class 12 Maths · Inverse Trigonometric Functions · Conceptual Answer #40

Evaluate \(\tan^{-1}[\tan(7\pi/6)]\).

✅ Step-by-Step Solution

Final Answer: π/6
  1. Tangent has period π; 7π/6−π=π/6 lies in (−π/2,π/2).
  2. π/6

📋 CBSE Stepwise Marking Scheme

  • [0.5 marks] Tangent has period π; 7π/6−π=π/6 lies in (−π/2,π/2).
  • [0.5 marks] π/6

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Evaluate \(\cos^{-1}[\cos(7\pi/6)]\).
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