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The value of sin– 1 (3/73)+ cos–1 (11/146 ) + cot–13 is 

(A) 5π/12 

 (B) 17π/12 

 (C) 7π/12 

 (D) None of these

1 Answer

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Best answer

π/4 + π /6 

= 5π /12  Ans.

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