RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 6 of Exercise 4.7

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Evaluate each of the following:

cot can be written as cot

we know cot(π +θ ) = cot(θ)

cot = cot

Now the question becomes cot–1(cot)

cot–1(cot x) = x

Provided x ϵ (0,π)

cot–1(cot) = .

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