The range of the function f (x) = cos [x], for −π/2 < x < π/2 contains.

Mathematics · JEE Advanced · NTA Exams — Sets, Relations and Functions

1. {–1, 1, 0}
2. {cos 1, 1, cos 2}
3. {cos 1, –cos 1, 1}
4. [–1, 1]

Answer

(B) cos 1, 1, cos 2

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