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cos x= 3cos y then 2tan (y-x)/2= get the answer please give me answer

cos x= 3cos y then 2tan (y-x)/2=
get the answer
       please give me answer                                  

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
Dear student

This question is incomplete as there must be boundary conditions, however

Consider x = pi/2 = y

Answer for required expression is 0

Regards

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