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Example 18 - sin x = root 3, find principal solution - Chapter 3 - Examples

Example 18 - Chapter 3 Class 11 Trigonometric Functions - Part 2

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Example 18 Find the principal solutions of the equation sin x = √3/2 . sin x = √3/2 We know that sin 60° = √3/2 Here sin is positive, sin is positive in Ist and IInd quadrant Value in Ist quadrant = 60° Value in llnd Quadrant = 180 – 60 = 120° So, principal solution are x = 60° and 120° x = 60/180 𝜋 and 120/180 𝜋 x = 𝜋/3 and 2/3 π

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.