Ex 2.1, 2 - Find principal value of cos-1 (root 3/2) - Class 12 - Ex 2.1

  1. Chapter 2 Class 12 Inverse Trigonometric Functions
  2. Serial order wise

Transcript

Ex 2.1, 2 Find the principal value of cos-1 (√3/2) Let y = cos-1 √3/2 cos y = √3/2 cos y = cos π/6 We know that principal value of cos-1 is [0, 𝜋] Hence, principal value of cos is π/6

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