If 4sin−1⁡x+cos−1⁡x=π then x equal 

If 4sin1x+cos1x=π then x equal 

  1. A

    12

  2. B

    32

  3. C

    12

  4. D

    none of these 

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    Solution:

    We have,

    4sin1x+cos1x=π4sin1x+π2sin1x=π3sin1x=π2x=sinπ6=12

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