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if tan (A-B) =1 and sec (A +B) =(2)/(sqr...

if `tan (A-B) =1 and sec (A +B) =(2)/(sqrt3),` then the smallest positive value of B is-

A

`(19pi)/(24)`

B

`(13pi)/(24)`

C

`(7pi)/(34)`

D

`(11pi)/(24)`

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A
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