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(–θ) is –cot(θ)

The equation given above becomes cot–1(–cot)



Let cot–1() = y

cot y =

= cot

The range of principal value of cot–1is (0, π)

and cot

The value of cot–1(cot) is .

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