RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 2 of Exercise 4.3

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2

For the principal values, evaluate each of the following:

Let

Then tan x = –1


= –tan


= tan



Let


Then cos y =





Hence,


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