JEE MATHEMATICS MCQ: FUNCTIONS

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Analyzing +4 | -1

Which of the following is not periodic?

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Correct option: B

\cos \sqrt x + {\cos ^2}x

Option B (

\cos \sqrt x + {\cos ^2}x

) is correct because

\cos \sqrt x

is not a periodic function, making the entire expression non-periodic.

More Questions from FUNCTIONS

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f:(-\infty, 2] \longrightarrow(-\infty, 4]

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f\left( x \right) = x - \left[ x \right]

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S=\left\{x: f(x)=f^{-1}(x)\right\}