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Ex 2.1, 9 - Chapter 2 Class 12 Inverse Trigonometric Functions
Last updated at Dec. 8, 2016 by Teachoo
Transcript
Ex 2.1, 9 Find the principal value of cos-1 ( 1/ 2) Let y = cos-1 ( 1/ 2) cos y = ( 1)/ 2 cos y = cos (3 /4) Range of principal value of cos-1 is between [0 , ] Hence the principal value is 3 /4
Chapter 2 Class 12 Inverse Trigonometric Functions
Serial order wise
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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.