Example 1 - Chapter 3 Class 11 Trigonometric Functions

Last updated at April 16, 2024 by

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Example 1 Convert 40° 20′ into radian measure. 40° 20′ = 40°+ 20′ = 40° + (𝟐𝟎°)/𝟔𝟎 = 40° + (1°)/3 = (120° + 1)/3 = (𝟏𝟐𝟏°)/𝟑 We know that Radian measure = 𝜋/180 × Degree measure = 𝜋/(180°) × (121°)/3 = 𝟏𝟐𝟏/𝟓𝟒𝟎 𝝅 radians

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo