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If A >0,\ B >0\ a n d\ A+B=\ pi/6 , then...

If `A >0,\ B >0\ a n d\ A+B=\ pi/6` , then the minimum value of `t a n A+t a n B` is: `2-sqrt(3)` b. `4-2sqrt(3)` c. `sqrt(3)-sqrt(2)` d. `2/(sqrt(3))`

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