RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 3 of Exercise 4.2

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3

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

Domain of lies in the interval [–1, 1].


Domain of cos x lies in the interval [0, ] = [0, 3.14]


Domain of + cos x lies in the interval [–1, 1].


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