Ex 2.1, 3 - Find principal value of cosec-1 (2) - Inverse - Ex 2.1

  1. Chapter 2 Class 12 Inverse Trigonometric Functions
  2. Serial order wise
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Ex 2.1, 3 Find the principal value of cosec 1 (2) Let y = cosec 1 2 cosec y = 2 cosec y = cosec ( /6) Range of principal value of cosec-1 is [ /2, /2] {0} Hence, principal value of cosec 1 2 is /6.

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