RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 1 of Exercise 4.5

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Find the principal values of each of the following:

Let cosec–1 = y

cosec y =

= cosec

The range of principal value of cosec–1 is –{0}

and cosec

Therefore, the principal value of cosec–1 is .

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