Ex 3.1, 1 (ii) - Chapter 3 Class 11 Trigonometric Functions

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Ex 3.1, 1 Find the radian measures corresponding to the following degree measures: (ii) –47° 30’ –47° 30′ = –(47° + 30′) = –("47" °"+ " (𝟑𝟎°)/𝟔𝟎) = –("47" °"+ " ( 1°)/2) = –(( 94 + 1°)/2) = –(( 𝟗𝟓°)/𝟐) Radian measure = "π" /180 × degree measure = "π" /𝟏𝟖𝟎 × (("–" 𝟗𝟓)/𝟐) = "π" × (−19)/72 = (−𝟏𝟗𝝅)/𝟕𝟐 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