RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 5 of Exercise 4.2

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For the principal values, evaluate each of the following:

Let Let

Then, sin x = = –sin = sin

Let = y

Then, cos y = = cos


Principal value of is .

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