The range of f(x)=cos−1⁡log4⁡x−π2+sin−1⁡1+x22x is equal to

The range of f(x)=cos1log4xπ2+sin11+x22x is equal to

  1. A

    0,π2+π2

  2. B

    π2,π2+π2

  3. C

    π6,π2

  4. D

    π2

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    Solution:

    The domain of f(x) is {1}.

     Range (f)={f(1)}=π2.

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