A value of tan−1⁡sin⁡cos−1⁡23, is 

A value of tan1sincos123, is 

  1. A

    π/4

  2. B

    π/2

  3. C

    π/3

  4. D

    π /6

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    Solution:

    tan1sincos123

    =tan1sinsin113=tan113=π6

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