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Find the Principal Value of Cosec−1 (2) - Mathematics

Find the principal value of cosec−1 (2)

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Solution

Let cosec−1 (2) = y. Then,  `cosec y = 2 = cosec (pi/6)`

We know that the range of the principal value branch of cosec−1 is  `[-pi/2, pi/2] - {0}`

Therefore, the principal value of  `cosec^(-1)(2) " is " pi/6`

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APPEARS IN

NCERT Class 12 Maths
Chapter 2 Inverse Trigonometric Functions
Q 3 | Page 41
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