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 4.6

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Find the domain of f(x) = cotx + cot–1 x.

Now the domain of cot x is

While the domain of cot–1x is [0,π ]

The union of these two will give the domain of f(x)


= [0,π]

The domain of f(x) is [0,π]

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