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AB is a vertical pole. The end A is on the level ground .C is the middle point of AB. P is a point on the level ground . The portion BC subtends an angles `beta` at P. If AP = nAB, then tan `beta`=

A

`(n)/(2n^(2) + 1)`

B

`(n)/(n^(2)-1)`

C

`(n)/(n^(2)+1)`

D

None of these

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The correct Answer is:
A
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